UPSC Ecology And Environment Environmental Issue And Environmental Pollution Question Bank

done Environmental Issues Total Questions - 161

• question_answer1)
  Green house effect is warming due to
  A)
  infra-red rays reaching earth done clear
  B)
  moisture layer in atmosphere done clear
  C)
  increase in temperature due to increase in carbon dioxide concentration of atmosphere done clear
  D)
  ozone layer of atmosphere. done clear
  View Solution play_arrow

• question_answer2)
  Acid rain is due to increase in atmospheric concentration of
  A)
  ozone and dust   done clear
  B)
  \[C{{O}_{2}}\] and CO done clear
  C)
  \[S{{O}_{2}}\] and CO              done clear
  D)
  \[S{{O}_{2}}\] and\[N{{O}_{2}}\]. done clear
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• question_answer3)
  The two great industrial tragedies namely, MIC and Chernobyl tragedies respectively occurred where and at which time?
  A)
  Bhopal 1984, Ukrain 1986 done clear
  B)
  Bhopal 1986, Russia 1988 done clear
  C)
  Bhopal 1984, Ukrain 1990 done clear
  D)
  Bhopal 1984, Ukrain 1988 done clear
  View Solution play_arrow

• question_answer4)
  If there was no \[C{{O}_{2}}\] in the earth's atmosphere, the temperature of earth's surface would be
  A)
  higher than the present done clear
  B)
  dependent on the amount of oxygen in the atmosphere done clear
  C)
  same as present done clear
  D)
  less than the present. done clear
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• question_answer5)
  How carbon monoxide, emitted by automobiles, prevents transport of oxygen in the body tissues?
  A)
  by forming a stable compound with haemoglobin done clear
  B)
  by obstructing the reaction of oxygen with haemoglobin done clear
  C)
  by changing oxygen into carbon dioxide done clear
  D)
  by destroying the haemoglobin. done clear
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• question_answer6)
  What is B.O.D.?
  A)
   The amount of \[{{O}_{2}}\] utilized by organisms in water done clear
  B)
   The amount of \[{{O}_{2}}\] utilized by micro-organisms for decomposition done clear
  C)
  The total amount of \[{{O}_{2}}\] present in water done clear
  D)
   All of the above. done clear
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• question_answer7)
  Which one of the following pairs is mismatched?
  A)
   fossil fuel burning - release of \[C{{O}_{2}}\] done clear
  B)
   nuclear power - radioactive wastes done clear
  C)
   solar energy - greenhouse effect done clear
  D)
   biomass burning - release of \[C{{O}_{2}}\]. done clear
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• question_answer8)
  Acid rain concentrated in the eastern portions of the United States is primarily the result of
  A)
   nuclear power plants in the region done clear
  B)
   coal-burning power plants in the Midwest done clear
  C)
   hydro electric power plants in northeastern Canada done clear
  D)
   off-shore oil drilling rigs along the east coast of the United States done clear
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• question_answer9)
  Alien species that cause the most harm are those that
  A)
   struggle to fit into new ecosystems and eventually die out. done clear
  B)
   eventually become naturalized done clear
  C)
   become invasive done clear
  D)
   become agricultural products done clear
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• question_answer10)
  Environmental pollutants such as PCB's contaminate oceans and other aquatic systems. Plankton in the ocean become contaminated by PCB's and pass this along through the food chain, A pregnant woman has been cautioned to limit her consumption of food that may be high in PCBs. If she consumes food from a nearby contaminated ocean, we would expect that the most contaminated foods would be:
  A)
   shrimp done clear
  B)
   clams done clear
  C)
   fish that eat shrimp done clear
  D)
   kelp and other ocean plants done clear
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• question_answer11)
  In clean water the concentration of
  A)
   BOD is low but DO is high done clear
  B)
   Both BOD and DO are high done clear
  C)
   BOD is high but DO is low done clear
  D)
   Both BOD and DO are low done clear
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• question_answer12)
  Examining an old abandoned home several months after a flood, a relief worker suddenly experiences difficulty breathing. At the hospital she learns that she experienced:
  A)
   a chronic respiratory illness more common in the developed world. done clear
  B)
   a chronic respiratory illness more common in the developing world. done clear
  C)
   an acute respiratory illness more common in the developed world. done clear
  D)
   an acute respiratory illness more common in the developing world. done clear
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• question_answer13)
  Harmful algal booms appear to be linked to unusually high levels of nutrient pollution. Which of the following is the most likely source of nutrient pollution in a river drainage system associated with an algal bloom?
  A)
   a coal-fired power plant done clear
  B)
   a nuclear power plant done clear
  C)
   chicken and hog farms done clear
  D)
   a large shopping mall done clear
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• question_answer14)
  Health problems associated with indoor air pollution in developing countries is most commonly associated with
  A)
   chlorine gas released from tap water. done clear
  B)
   the use of biofuels for cooking and heating. done clear
  C)
   poor hygiene and sanitation inside the home. done clear
  D)
   the widespread use of pesticides to control disease vectors. done clear
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• question_answer15)
  The formation of ozone hole in the Antarctic region been a cause of concern. What could be the reason for the formation of this hole?
  A)
   Presence of prominent tropo-spheric turbulence; and inflow of chlorofluorocarbons. done clear
  B)
   Presence of prominent polar front and stratospheric clouds; and inflow of chlorofluorocarbons. done clear
  C)
   Absence of polar front and stratospheric clouds; and inflow of methane and chlorofluorocarbon. done clear
  D)
   Increased temperature at polar region due to global warming. done clear
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• question_answer16)
  Recent studies indicate that wo of the most dangerous components of air pollution around major cities in the developed nations are:
  A)
   fine particles and sulfur pollution. done clear
  B)
   carbon monoxide and ozone. done clear
  C)
   lead and volatile organic compounds. done clear
  D)
   radon and carbon monoxide. done clear
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• question_answer17)
  The decline of the polar ice caps because of increasing temperatures at the poles will
  A)
   increase the amount of fresh water available for human use. done clear
  B)
   decrease the largest reserve of fresh water on Earth. done clear
  C)
   increase the amount of fresh water available in aquifers. done clear
  D)
   decrease global sea levels. done clear
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• question_answer18)
  The developed countries of the world have contributed the most to global climate change. By applying the polluter pays and equity principles, we would expect that the:
  A)
   developed countries will provide funds for adaptations in the developing countries. done clear
  B)
   developing countries will provide funds for adaptations in the developed countries. done clear
  C)
   precautionary principle will guide the payment of compensation to developed countries. done clear
  D)
   stabilization wedge approach to global climate change will help to equalize the funds for adaptations. done clear
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• question_answer19)
  The evolution of pesticide resistance resurgence, and secondary-pest outbreaks are only some of the problems that result from reliance on
  A)
   crop rotation and biological controls, which disrupt the natural dynamics of ecosystems. done clear
  B)
   pesticides, creating the need to alternate between a pesticide and an herbicide every other year. done clear
  C)
   rodenticides to kill weeds and insect pests and prevent the spread of viral diseases. done clear
  D)
   pesticides,  creating a never-ending pesticide treadmill requiring new pest-fighting strategies. done clear
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• question_answer20)
  The most dramatic temperature shifts in the past few decades have been
  A)
   on land near the equator. done clear
  B)
   in the oceans nearest the equator. done clear
  C)
   in the north and south polar regions. done clear
  D)
   in the innermost regions of the North. American and African continents. done clear
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• question_answer21)
  The most effective way to reduce GHG emissions is to increase
  A)
   the production of electric cars. done clear
  B)
   energy efficiency and renewable energy. done clear
  C)
   our reliance on widely available natural gas done clear
  D)
   the use of coal gasification plants and scrubber technologies to reduce sulfur emissions. done clear
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• question_answer22)
  The most likely sustainable solutions of ecological problems are
  A)
   Incorporate the concerns of economists, ecologists, and sociologists. done clear
  B)
   emphasize ecology over all other fields. done clear
  C)
   emphasize economics over all other fields. done clear
  D)
   emphasize ecological and social is - "Use over economic concerns. done clear
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• question_answer23)
  The negative impacts of ozone pollution on forests are expected to increase as
  A)
   ocean levels rise and wind patterns shift. done clear
  B)
   organisms spread northward because of warming climate conditions. done clear
  C)
   the increasing demand for timber further stresses the growth of trees, done clear
  D)
   temperatures increase and precipitation becomes more unpredictable. done clear
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• question_answer24)
  The pesticide that directly attacks the nervous system is
  A)
   Aldrin               done clear
  B)
   DDT done clear
  C)
   Organic Phosphates        done clear
  D)
   None of the above done clear
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• question_answer25)
  The pesticides that also function as endocrine disruptors cause disease by
  A)
   causing excessive secretion of stomach acids. done clear
  B)
   mimicking the effects of estrogenic hormones. done clear
  C)
   causing muscle spasms and cramping in major muscle groups. done clear
  D)
   greatly reducing the ability of the intestines to absorb nutrients. done clear
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• question_answer26)
  The quality of the final treated wastewater effluent from a modern treatment plant is typically:
  A)
   lower in organic and nutrient content than the body of water into which it is discharged. done clear
  B)
   lower in organic content but higher in nutrient content than the body of water into which it is discharged. done clear
  C)
   higher in organic and nutrient content than the body of water into which it is discharged. done clear
  D)
   higher in organic content but lower in nutrient content than the body of water into which it is discharged. done clear
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• question_answer27)
  Brightly colored antique children's toys from before 1970 may be colored with paints that are contaminated with:
  A)
   heavy metals done clear
  B)
   toxic plastic compounds. done clear
  C)
   synthetic organic compounds. done clear
  D)
   synthetic inorganic compounds. done clear
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• question_answer28)
  By design, the molecules that resist biodegradation and include some of the most problematic persistent organic pollutants are the :
  A)
   synthetic organic compounds done clear
  B)
   synthetic inorganic compounds done clear
  C)
   recycled heavy metals done clear
  D)
   chlorinated heavy metals done clear
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• question_answer29)
  Carcinogens arc dangerous because they affect
  A)
   oxygen-carrying red blood cells. done clear
  B)
   the ability of the lining of the lungs to absorb oxygen. done clear
  C)
   DNA molecules inside cells. done clear
  D)
   the ability to absorb nutrients in the wall of the intestines. done clear
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• question_answer30)
  CFCs primarily contribute to the destruction of the ozone by:
  A)
   producing chlorinated gases that reflect back a significant amount of ultraviolet light. done clear
  B)
   releasing carbon monoxide into the stratosphere, which reacts with the oxygen in ozone. done clear
  C)
   releasing gases into the stratosphere that block the enzymes that create ozone. done clear
  D)
   contributing chlorine, which acts as a catalyst in the breakdown of ozone. done clear
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• question_answer31)
  At an international conference on global climate change, a representative of a developing country admits that each year, his country contributes the same amount of green-house gases to the atmosphere as a particular developed nation. However, he argues that because his country has only 10% of the wealth of that developed nation, the developed nation should pay much more of the costs of adaptation. This representatives arguments illustrate the:
  A)
   polluter pays principle. done clear
  B)
   precautionary principle. done clear
  C)
   equity principle. done clear
  D)
   conservation of the commons principle. done clear
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• question_answer32)
  Concerned with the expensive disposal their hazardous wastes, a company learns that it can purchase another chemical that will neutralize the company's hazardous wastes into a nontoxic form. The strategy used by this company is most consistent with which of the following hazardous waste disposal system methods?
  A)
   secure landfill done clear
  B)
   deep-well injection done clear
  C)
   on-site surface impoundment done clear
  D)
   best-demonstrated available technology done clear
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• question_answer33)
  Freshwater becomes polluted:
  A)
   by oil spills in ocean water moving inland. done clear
  B)
   primarily by contaminants from aquifers moving to surface waters. done clear
  C)
   as a result of eutrophication. done clear
  D)
   from runoff associated with urban areas chemicals used in farming in rural areas. done clear
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• question_answer34)
  In developing countries, contaminated water is responsible for the deaths of more than 1.6 million people. Contributing to this problem is the use of
  A)
   groundwater for consumption and the disposal of human sewage. done clear
  B)
   groundwater for consumption and the disposal of human sewage in surface waters. done clear
  C)
   surface waters for consumption and me disposal of human sewage. done clear
  D)
   surface waters for consumption and the disposal of human sewage in groundwater. done clear
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• question_answer35)
  In general, temperatures along an ocean coastline vary less than temperatures 100 miles inland. This moderation of temperatures along coastlines is because
  A)
   as the oceans evaporate it cools off the coastlines. done clear
  B)
   the sun shines more intensely away from the ocean coastlines done clear
  C)
   ocean temperatures change more quickly than air temperatures. done clear
  D)
   ocean temperatures do not change as quickly as air temperatures. done clear
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• question_answer36)
  Ozone levels increase in the atmosphere when volatile organic compounds (VOCs) are present because:
  A)
   less nitric oxide is available to react with ozone. done clear
  B)
   VOCs react with atmospheric nitrogen to form ozone. done clear
  C)
   VOCs release ozone when they are broken apart by solar energy. done clear
  D)
   more carbon dioxide is available to contribute additional oxygen for ozone formation. done clear
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• question_answer37)
  The greatest progress in reducing atmospheric levels of lead pollution resulted from
  A)
   the elimination of leaded gas. done clear
  B)
   the switch from lead to graphite in pencils. done clear
  C)
   the development of new types of batteries that use lithium instead of lead. done clear
  D)
   new types of lead scrubbers on smokestacks that removed lead from the air. done clear
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• question_answer38)
  The inside of a car or greenhouse would not heat up as much in the presence of sunshine if
  A)
   air was circulated within the car or within the greenhouse. done clear
  B)
   infrared radiation passed through glass as easily as sunlight. done clear
  C)
   infrared radiation could not pass through glass as easily as sunlight. done clear
  D)
   sunlight could pass through glass more easily than through air. done clear
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• question_answer39)
  Villagers living in a heavily forested region surrounding a remote district in Punjab decided to reduce air pollution in their village. In the autumn season, after the leaves had fallen from the trees, the villagers blew all of the dead leaves into the village pond. About 8 months later, they noticed a large number of dead fish in the pond. What is the most likely cause of the fish kill?
  A)
   the dead leaves released poisons that killed the fish. done clear
  B)
   the decomposing leaves depleted the levels of oxygen done clear
  C)
   bacteria fed on the leaves and then the bacteria infected the fish. done clear
  D)
   carbon dioxide from the decaying leaves reached toxic levels and killed the fish. done clear
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• question_answer40)
  Which of the following represents an alarming positive feedback loop of global warming ?
  A)
   increasing temperature raise humidity, which further increases temperatures. done clear
  B)
   decreased pH of the ocean increases the rate at which carbon dioxide is absorbed by the oceans from the atmosphere. done clear
  C)
   increased use of fossil fuels adds sulfate aerosols into the atmosphere, which traps more heat. done clear
  D)
   increased levels of atmospheric carbon dioxide increases photosynthesis, which further increases carbon dioxide atmospheric levels. done clear
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• question_answer41)
  Which one of the following generally increases the pollution of the air?
  A)
   bright sunlight. done clear
  B)
   generation of hydroxyl radicals. done clear
  C)
   sea salt aerosols entering the air over an ocean. done clear
  D)
   gases released by a volcanic eruption. done clear
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• question_answer42)
  Wood pellets are produced from the waste sawdust of lumber and paper mills. Home-heating stoves burning these pellets can heat homes directly, instead of relying on other energy sources. Heating your home with wood pellets is:
  A)
   sustainable, less polluting, and about 3 times as efficient as heating a home using electricity from a coal-fired power plant. done clear
  B)
   sustainable, slightly more polluting, and is about 30% more efficient than using electricity from a coal-fired power plant. done clear
  C)
   not sustainable but is less polluting and is about as efficient as using electricity from a coal-fired power plant. done clear
  D)
   not sustainable and actually pollutes more than using electricity from a coal-fired power plant. done clear
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• question_answer43)
  The Clean Development Mechanism (CDM), a mechanism to reduce greenhouse gas emission as per Kyoto Protocol implies that
  A)
   industrial countries receive carbon credits by funding carbon saving projects in another relatively affluent nation done clear
  B)
   industrial countries reduce their carbon emission by using environment friendly technology in production done clear
  C)
   developed countries invest in carbon reduction in developing countries and receive carbon credit in return done clear
  D)
   developed nations purchase carbon credit from other nations done clear
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• question_answer44)
  A gardener applied heavy doses of the same insecticide to his garden for two consecutive years to kill squash bugs. During the third year, the man called in an expert to explain why he had an abundance of new pests that were destroying her garden. The expert explained that the abundant new pests were largely due to his previous use of a insecticide in a phenomenon known as
  A)
   pesticide resistance done clear
  B)
   secondary-pest outbreak done clear
  C)
   triennial pest emergence done clear
  D)
   bounce back resurgence done clear
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• question_answer45)
  A gardener has a large garden and decides this year he will not let the pests get beyond control. At the earliest sign of insect pests, he applies an organic insecticide and continues to apply it every month throughout the growing season. The next year he decides not to use any insecticides, thinking that he must have eliminated the pests with the prior year's treat-ments. Unfortunately, the pests reappear in numbers greater than he has ever seen before, and his plants are destroyed. Investigating this phenomenon, he learns that he has just experienced a phenomenon known as
  A)
   resurgence                     done clear
  B)
   pesticide resistance done clear
  C)
   natural selection done clear
  D)
   emergence done clear
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• question_answer46)
  Moss invades and establishes itself on bare rock, accumulating the beginnings of soil. After several years, enough soil has become established that grasses begin to grow where there was once bare rock. Without the moss building up soil, the grasses would have had no chance. The mosses changed the environment enough to permit grasses to grow in a process called:
  A)
   sublimation,                  done clear
  B)
   facilitation. done clear
  C)
   regeneration,                 done clear
  D)
   improvisation. done clear
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• question_answer47)
  Most of the wheat, rice and corn raised in the world has resulted from genetic engineering of one sort or another, either by crossing certain varieties or deliberately transferring genes using transgenic techniques. These methods select for plants that produce their own defenses against pests with chemicals or physical barriers. Helping to feed the world, this represents an example of :
  A)
   cultural control done clear
  B)
   natural enemies control done clear
  C)
   genetic control done clear
  D)
   natural chemical control done clear
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• question_answer48)
  The eagle predators, the amount of acorns produced annually, nesting sites in the trees, and cold winter temperatures limits the squirrel population in the Punjab region. The many factors listed above that can affect the squirrel population represent:
  A)
   environmental resistance.         done clear
  B)
   the carrying capacity of the squirrel population. done clear
  C)
   the squirrel's life history. done clear
  D)
   the biotic potential of the squirrel population. done clear
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• question_answer49)
  The most widespread negative health impact of air pollution is the
  A)
   destruction of the cellular component of the immune system. done clear
  B)
   loss of the ability to absorb vital nutrients by the digestive system. done clear
  C)
   disruption of the signaling processes of the endocrine system. done clear
  D)
   chronic stress that weakens many systems of the body. done clear
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• question_answer50)
  The population of a particular type of fish, called Kubani found and in the Chilka lake only, is under heavy fishing pressure. If too many Kubians are caught, its population will crash and future years of fishing Kubani will suffer. Kubani can exhibit logistic growth under certain circumstances. Assuming logistic growth, it would be best to manage Kubani population by permitting the harvesting of just enough fish to keep the Kubani population.
  A)
   at 1/10 of its carrying capacity. done clear
  B)
   at half its carrying capacity. done clear
  C)
   at its full carrying capacity. done clear
  D)
   above its carrying capacity. done clear
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• question_answer51)
  In the lower regions of Uttaranchal, a toxic weed called leafy spurge was accidentally introduced and has grown and spread rapidly, covering millions of acres of grass- lands. Leafy spurge is generally avoided by cattle and horses and may be toxic to them. Thus, grasslands where leafy spurge has spread has been damaged by the invasion of this plant. Plants such as leafy spurge can double their population size every year in part because of their efficient production of large amounts of seeds. Populations that can double every year, such as leafy spurge.
  A)
   can do so endlessly, eventually covering all of the land on Earth. done clear
  B)
   exhibit constant growth increasing by the same amount every year. done clear
  C)
   exhibit a state of equilibrium when they are spreading. done clear
  D)
   exhibit exponential growth as they spread to new regions. done clear
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• question_answer52)
  Which one of the following statements best reflects the overall position of current science on the role of biodiversity in ecosystems?
  A)
   The more species in an ecosystem, the greater the biomass production. done clear
  B)
   The more species in an ecosystem, the greater the drought resistance. done clear
  C)
   The effects of biodiversity on the functioning of an ecosystem are not consistent. done clear
  D)
   Almost every species in an ecosystem is essential to maintain the overall ecosystem. done clear
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• question_answer53)
  Widely applying pesticides may lead to resurgence and secondary-pest outbreak because:
  A)
   the insecticide also killed the natural predators of the pests. done clear
  B)
   the plants have now lost their ability to fight the pests. done clear
  C)
   pesticides typically harm plants in ways that take several years to appear. done clear
  D)
   new species that are more resistant to insecticides have evolved. done clear
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• question_answer54)
  Protection of endangered species by preserving the entire ecosystem is known as:
  A)
   In-situ conservation done clear
  B)
   Ex-situ conservation done clear
  C)
   Biodiversity conservation done clear
  D)
   None of the above done clear
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• question_answer55)
  Ramsar Convention 1971 aimed at the conservation of
  A)
   Wasteland                     done clear
  B)
   Wetland done clear
  C)
   Desert               done clear
  D)
   All of the above done clear
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• question_answer56)
  Building on scientific research and careful measurements, the 1987 Montreal Protocol represented :
  A)
   global stewardship to limit the destruction of the ozone. done clear
  B)
   agreements to maintain sustainable levels of agricultural productivity. done clear
  C)
   sound science to better understand the impact of acid precipitation. done clear
  D)
   stewardship by the Canadian government to limit the production of greenhouse gases. done clear
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• question_answer57)
  Over the past 20 years, vultures in India and Pakistan have declined by more than 95 % due to :
  A)
   increased hunting and fear from villagers that the vultures will kill their domestic cattle. done clear
  B)
   the destruction of their nesting habitat in cliffs bordering the Indus River. done clear
  C)
   the spread of respiratory viruses common in domestic chickens. done clear
  D)
   the widespread use of an anti-inflammatory drug in cattle that were eaten by vultures. done clear
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• question_answer58)
  'El Nino' associated with the formation of the South West Monsoon of India is
  A)
   an abnormally warm ocean current done clear
  B)
   a periodic warm air-mass done clear
  C)
   a periodic warm wind done clear
  D)
   a periodic low pressure centre done clear
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• question_answer59)
  Ozone holes are more pronounced at the
  A)
   Equator                        done clear
  B)
   Tropic of Cancer done clear
  C)
   Tropic of Capricorn        done clear
  D)
   Poles done clear
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• question_answer60)
  Acid rains are produced by
  A)
   excess \[N{{O}_{2}}\] and \[S{{O}_{2}}\] from burning fossil fuels done clear
  B)
   excess production of \[N{{H}_{3}}\] by industry and coal gas done clear
  C)
   excess release of carbon monoxide by incomplete combustion done clear
  D)
   excess formation of \[C{{O}_{2}}\] by combustion and animal respiration. (1988, 89)   done clear
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• question_answer61)
  ?Bio Carbon Fund Initiative for Sustainable Forest Land-scopes? is managed by the (IAS Prelims 2015)
  A)
   Asian Development Bank done clear
  B)
   International Monetary Fund done clear
  C)
   United Nations Environment Programme done clear
  D)
   World Bank done clear
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• question_answer62)
  Which one of the following is associated with the issue of control and phasing out of the use of ozone-depleting substances? (IAS Prelims 2015)
  A)
   Bretton Woods Conference done clear
  B)
   Montreal Protocol done clear
  C)
   Kyoto Protocol done clear
  D)
   Nagoya Protocol done clear
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• question_answer63)
  What is Rio+20 Conference, of ten mentioned in the news? (IAS Prelims 2015)
  A)
   It is the United Nations Conference on Sustainable Development done clear
  B)
   It is a Ministerial Meeting of the World Trade Organization done clear
  C)
   It is a Conference of the Inter-governmental Panel on Climate Change done clear
  D)
   It is a Conference of the Member Countries of the Convention on Biological Diversity done clear
  View Solution play_arrow

• question_answer64)
  Biomass gasification is considered to be one of the sustainable solutions to the power crisis in India. In this context, which of the following statements is/are correct?

  1. Coconut shells, groundnut shells and rice husk can be used in biomass gasification.

  2. The combustible gases generated from biomass gasification consist of hydrogen and carbon dioxide only.

  3. The combustible gases generated from biomass gasification can be used for direct heat generation but not in internal combustion engines.

  Select the correct answer using the codes given below:
  A)
   1 only              done clear
  B)
   2 and 3 done clear
  C)
   1 and 3            done clear
  D)
   1, 2 and 3 done clear
  View Solution play_arrow

• question_answer65)
  Eutrophication in the Chesapeake Bay along the eastern edge of Maryland bas resulted in low oxygen levels in the water and alteration of food webs. The cause of this eutrophication appears to be pollution that contains high levels of:

  1. nitrogen

  2. carbon

  3. phosphorus

  4. sulphur

  Which of the above is/are correct?
  A)
   1 and 3            done clear
  B)
   2 and 4 done clear
  C)
   1, 2 and 3                     done clear
  D)
   All of these done clear
  View Solution play_arrow

• question_answer66)
  Consider the following statements:

  1. Kyoto protocol came into force in the year 2005.

  2. Kyoto protocol deals primarily with the depletion of the ozone layer.

  3.  Methane as a greenhouse gas is more harmful than carbon dioxide.

  Which of the statements given above is/are correct?
  A)
   1 and 2            done clear
  B)
   1 and 3 done clear
  C)
   1 only              done clear
  D)
   3 only done clear
  View Solution play_arrow

• question_answer67)
  Compared to 50 years ago, the thinning ozone layer has produced dramatic increases in cases of:

  1. asthma

  2. color blindness

  3. cataracts

  4. skin cancer

  Which of the above is/are correct?
  A)
   1 and 2           done clear
  B)
   3 and 4 done clear
  C)
   1, 2 and 3                     done clear
  D)
   All of these done clear
  View Solution play_arrow

• question_answer68)
  If atmospheric carbon dioxide was eliminated from our atmosphere, we would expect that:

  1. the Earth would cool considerably

  2. photosynthesis would dramatically increase

  3. the Earth would heat up considerably

  4. photosynthesis would dramatically decrease

  Which of the above is/are correct?
  A)
   1 and 2            done clear
  B)
   2 and 3 done clear
  C)
   1 and 4            done clear
  D)
   2 and 4 done clear
  View Solution play_arrow

• question_answer69)
  Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/reasons is this attributable?

  1. The anaerobic conditions associated with rice cultivation cause the emission of methane.

  2. When nitrogen based fertilizers are used, nitrous oxide is emitted from the cultivated soil.

  Which of the statements given above is / are correct?
  A)
   1 only              done clear
  B)
   2 only done clear
  C)
   Both 1 and 2                 done clear
  D)
   Neither 1 nor 2 done clear
  View Solution play_arrow

• question_answer70)
  Gases commonly referred as greenhouse gases are :

  1. \[C{{H}_{4}}\]

  2. \[C{{O}_{2}}\]

  3. CFC

  4. \[N{{H}_{3}}\]

  Which of the above is/are correct?
  A)
   1 and 4            done clear
  B)
   2 and 3 done clear
  C)
   1, 2 and 3                     done clear
  D)
   All of these done clear
  View Solution play_arrow

• question_answer71)
  Fertilizers cause

  1. eutrophication of water bodies

  2. survival of most microorganisms

  3. destruction of crumb structure of soil

  4. all the above

  Which of the above is/are correct?
  A)
   1 and 3            done clear
  B)
   2 and 4 done clear
  C)
   1, 2 and 3                     done clear
  D)
   All of these done clear
  View Solution play_arrow

• question_answer72)
  Chipko movement is

  1. A movement of political strength held in Assam under the supervision of Rajeev Gandhi

  2. A environment movement held in uttarakhand under the guidance of sunderlal bahuguve.

  3. A movement for independence under the guidance of Nehruji

  4. A movement of independence under the guidance of Gandhi ji.

  Which of the following statements(s) is/are correct?
  A)
   1 only              done clear
  B)
   2 only done clear
  C)
   3 only              done clear
  D)
   Both 1 and 4 done clear
  View Solution play_arrow

• question_answer73)
  Eutrophication of a lake most likely is the result of

  1. Elevated nitrogen gas level in water.

  2. Elevated phosphorus levels in water.

  3. Excessive concentration of\[C{{O}_{2}}\].

  4. A decrease in oxygen content of the water.

  Which of the above is/are correct?
  A)
   1 only              done clear
  B)
   1 and 3 done clear
  C)
   1 and 2            done clear
  D)
   1 and 4 done clear
  View Solution play_arrow

• question_answer74)
  Ozone layer can be destroyed by pollutants such as

  1. Hydrocarbons

  2. Carbon mono oxide

  3. Sulphur dioxide

  4. Nitrogen oxides

  A)
   1 and 2            done clear
  B)
   2 and 3 done clear
  C)
   1 sad 3             done clear
  D)
   1 and 4 done clear
  View Solution play_arrow

• question_answer75)
  Climatologist warm of a tipping point when global temperature trigger catastrophic events and rise levels rise more than 50 feet?s. What would cause the sea level rise so greatly and how much warmer does the world need to get for this tripping point to happen

  1. \[1{}^\circ C\]

  2. \[3{}^\circ C\]

  3. Melting of Greenland ice sheet

  4. thermal expansion of oceans

  Which of the above is/are correct?
  A)
   1 and 3            done clear
  B)
   1 and 3 done clear
  C)
   2 and 3            done clear
  D)
   2 and 4 done clear
  View Solution play_arrow

• question_answer76)
  One Carbon Credit is defined as __­­­­­__.

  1. Credit permit to release one ton of carbon dioxide.

  2. providing loans to establish a unit which produces carbon dioxide for industrial use.

  3. Finding out one new business which can use and recycle greenhouse gases.

  Which of the following statements(s) is/are correct?
  A)
   3 only              done clear
  B)
   2 only done clear
  C)
   1 only              done clear
  D)
   All 1, 2 and 3 done clear
  View Solution play_arrow

• question_answer77)
  Humans have contributed to habitat destruction by

  1. clearing land for farming

  2. excessive use of chemicals

  3. producing green-house gases through use of fossil fuels

  4. exploitation of land and water for mining of scarce resources

  Which of the above is/are correct?
  A)
   1 and 2            done clear
  B)
   2 and 3 done clear
  C)
   1, 2 and 3                     done clear
  D)
   All of these done clear
  View Solution play_arrow

• question_answer78)
  Global climate change threatens coral reefs by

  1. increasing the temperature

  2. decreasing the temperature

  3. increasing the pH of the oceans

  4. decreasing the pH of the oceans

  Which of the above is/are correct?
  A)
   1 and 2            done clear
  B)
   2 and 3 done clear
  C)
   1 and 4            done clear
  D)
   2 and 4 done clear
  View Solution play_arrow

• question_answer79)
  The acidification of oceans is increasing. Why is this phenomenon a cause of concern?

  1. The growth and survival of calcareous phytoplankton will be adversely affected.

  2. The growth and survival of coral reefs will be adversely affected.

  3. The survival of some animals that have phytoplanktonic larvae will be adversely affected.

  4. The cloud seeding and formation of clouds will be adversely affected.

  Which of the statements given above is /are correct?
  A)
   1, 2 and 3                     done clear
  B)
   2 only done clear
  C)
   1 and 3            done clear
  D)
   1, 2, 3 and 4 done clear
  View Solution play_arrow

• question_answer80)
  Which of the following countries suffer from the acid rains?

  1. Canada

  2. France

  3. Norway

  4. Germany

  Select the correct answers from the codes given below: Codes:
  A)
   1 and 2            done clear
  B)
   1 and 3 done clear
  C)
   2 and 3            done clear
  D)
   3 and 4 done clear
  View Solution play_arrow

• question_answer81)
  Which of the following statements about radioactive pollution are correct?

  1. It causes genetic changes in the animals.

  2. It causes disbalance among different minerals in the soil.

  3. It hinders blood circulation.

  4. It causes cancers.

  Select the correct answer from the codes given below: Codes:
  A)
   1 and 2            done clear
  B)
   1 and 4 done clear
  C)
   1, 3 and 4                     done clear
  D)
   2, 3 and 4 done clear
  View Solution play_arrow

• question_answer82)
  Which of the following conditions indicate the impact of global warming?

  1. Melting of glaciers

  2. Rise in sea level

  3. Changes in weather conditions

  4. Rise in global temperature

  Select the correct answer from the codes given below: Codes:
  A)
   1 and 2            done clear
  B)
   1, 2 and 3 done clear
  C)
   2, 3 and 4                     done clear
  D)
   1, 2, 3 and 4 done clear
  View Solution play_arrow

• question_answer83)
  As per National Aeronautics and Space Administration (NASA) research scientists found that concentrations of mercury near the ground level had increased in the Arctic Sea by mercury-pumping reaction which takes place because -

  1. of open water in a lead is much warmer than the air above it

  2. of the temperature difference, the air above the lead churns like the air above a boiling pot.

  3. the mixing is so strong that it actually pulls down mercury from a higher layer of the atmosphere near the surface.

  Select the answer from the codes given below-
  A)
   1 only              done clear
  B)
   1 and 2 only done clear
  C)
   2 and 3 only                 done clear
  D)
   All of the above done clear
  View Solution play_arrow

• question_answer84)
  A new nuclear waste disposal strategy announced by United States include-

  1. a "pilot interim store" will become operational in a 2021

  2. a larger "full-scale interim store" will open be open by 2025

  3. an underground disposal facility to be established by 2048 to permanently dispose of the material.

  4. a new organisation will be established to manage the siting, development and operation of the future waste stores.

  Select the answer from the codes given below-
  A)
   1, 2 and 3                     done clear
  B)
   2, 3 and 4 done clear
  C)
   1, 3 and 4                     done clear
  D)
   All of the above done clear
  View Solution play_arrow

• question_answer85)
  Which of the following statements are correct?

  1. A new study has found that changes in solar activity contributed no more than 10 per cent to global warming in the 20th century published in the journal Environmental Research Letters.

  2. It has been proposed that cosmic rays may have a role in cooling the earth by encouraging clouds to form, which subsequently reflect the sun's rays back into space.

  3. Researchers found high correlation between cosmic rays and global temperatures occurring every 22 years.

  Select the answer from the codes given below-
  A)
   1 only              done clear
  B)
   1 and 2 only done clear
  C)
   2 and 3 only                 done clear
  D)
   All of the above done clear
  View Solution play_arrow

• question_answer86)
  There is a concern, over the increases in harmful algal blooms in the seawaters of India. What could be the causative factors for this phenomenon?

  1. Discharge of nutrients from the estuaries.

  2. Run-off from the land during the monsoon.

  3. Upwelling in the seas.

  Select the correct answer from the codes given below:
  A)
   1 only              done clear
  B)
   1 and 2 done clear
  C)
   2 and 3            done clear
  D)
   1, 2 and 3 done clear
  View Solution play_arrow

• question_answer87)
  With reference to India, consider the following Central Acts

  1. Import and Export (Control) Act 1947

  2. Mining and Mineral Development (Regulation) Act 1957

  3. Customs Act 1962

  4. Indian Forest Act 1927

  Which of the above Acts have relevance to/bearing on the biodiversity conservation in the country?
  A)
   1 and 3            done clear
  B)
   2, 3 and 4 done clear
  C)
   1, 2, 3 and 4                 done clear
  D)
   None done clear
  View Solution play_arrow

• question_answer88)
  Biomass gasification is considered to be one of the sustainable solutions to the power crisis in India. In this context, which of the following statements is/are correct?

  1.  Coconut shells, groundnut shells and rice husk can be used in biomass gasification.

  2. The combustible gases generated from biomass gasification consist of hydrogen and carbon dioxide only.

  3. The combustible gases generated from biomass gasification can be used for direct heat generation but not in internal combustion engines.

  Select the correct answer using the codes given below:
  A)
   1 only              done clear
  B)
   2 and 3 done clear
  C)
   1 and 3            done clear
  D)
   1, 2 and 3 done clear
  View Solution play_arrow

• question_answer89)
  The safest method for biomedical waste disposal is:

  1. Incineration

  2. Autoclaving

  3. Sharp pit encapsulation

  4. Precipitation

  Which of the above is/are correct?
  A)
   1 and 2            done clear
  B)
   1 and 3 done clear
  C)
   1, 2 and 3                     done clear
  D)
   1, 2, 3 and 4 done clear
  View Solution play_arrow

• question_answer90)
  Forests that experience high levels of acid precipitation expose trees to soil that has :

  1. more dissolved calcium

  2. more dissolved aluminium

  3. less dissolved calcium

  4. less dissolved aluminium

  Which of the above is/are correct?
  A)
   1 and 2            done clear
  B)
   2 and 3 done clear
  C)
   1 and 4            done clear
  D)
   2 and 4 done clear
  View Solution play_arrow

• question_answer91)
  Excessive exposure of humans to UV-rays results in

  1. damage to immune system

  2. damage to lungs

  3. skin cancer

  4. peptic ulcers

  Which of the above is/are correct?
  A)
  1 and 2             done clear
  B)
   2 and 3 done clear
  C)
   1 and 3            done clear
  D)
   2 and 4 done clear
  View Solution play_arrow

• question_answer92)
  Gases commonly referred as greenhouse gases are :

  1.

  2.

  3. CFC

  4.

  Which of the above is/are correct?
  A)
   1 and 4            done clear
  B)
   2 and 3 done clear
  C)
   1, 2 and 3                     done clear
  D)
   1, 2, 3 and 4 done clear
  View Solution play_arrow

• question_answer93)
  Climatologist warn of a tipping point when global temperature trigger catastrophic events and rise levels risemore than 50 feets. What would cause the sea level rise so greatly and how much warmer does the world need to get for this tripping point to happen

  1.

  2.

  3. Melting of Greenland ice sheet

  4. thermal expansion of oceans

  Which of the above is/are correct?
  A)
   1 and 3            done clear
  B)
   1 and 3 done clear
  C)
   2 and 3            done clear
  D)
   2 and 4 done clear
  View Solution play_arrow

• question_answer94)
  Due to improper/ indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste?

  1. Beryllium

  2. Cadmium

  3. Chromium

  4. Heptachlor

  5. Mercury

  6. Lead

  7. Plutonium

  Select the correct answer using the codes given below.
  A)
   1, 3, 4, 6 and 7 only done clear
  B)
   1, 2, 3, 5 and 6 only done clear
  C)
   2, 4, 5 and 7 only done clear
  D)
   1, 2, 3, 4, 5, 6 and 7 done clear
  View Solution play_arrow

• question_answer95)
  Which of the following can be found as pollutants in the drinking water in some parts of India?

  1. Arsenic

  2. Sorbitol

  3. Fluoride

  4. Formaldehyde

  5. Uranium

  Select the correct answer using the codes given below.
  A)
   1 and 3 only       done clear
  B)
   2, 4 and 5 only done clear
  C)
   1, 3 and 5 only  done clear
  D)
   1, 2, 3, 4 and 5 done clear
  View Solution play_arrow

• question_answer96)
  Consider the following international agreements :

  1. The   International Treaty   on Plant   Genetic Resources for Food and Agriculture

  2. The United Nations Convention to Combat Desertification

  3. The World Heritage Convention

  Which of the above has/have a bearing on the biodiversity?
  A)
   1 and 2 only                 done clear
  B)
   3 only done clear
  C)
   1 and 3 only                 done clear
  D)
   1, 2 and 3 done clear
  View Solution play_arrow

• question_answer97)
  Consider the following statements regarding 'Earth Hour':

  1. It is an initiative of UNEP and UNESCO.

  2. It is a movement in which the participants switch off the lights for one hour on a certain day every year.

  3. It is a movement to raise the awareness about the climate change and the need to save the planet.

  Which of the statements given above is/are correct?
  A)
   1 and 3 only                 done clear
  B)
   2 only done clear
  C)
   2 and 3 only                 done clear
  D)
   1, 2 and 3 done clear
  View Solution play_arrow

• question_answer98)
  With reference to a conservation organization called Wetlands International', which of the following statements is/ are correct?

  1.  It is an intergovernmental organization formed by the countries which are signatories to Ramsar Convention.

  2. It works at the field level to develop and mobilize knowledge, and use the practical experience to advocate for better policies.

  Select the correct answer using the code given below.
  A)
   1 only              done clear
  B)
   2 only done clear
  C)
   Both 1 and 2                 done clear
  D)
   Neither 1 nor 2 done clear
  View Solution play_arrow

• question_answer99)
  Other than poaching, what are the possible reasons for the decline in the population of Ganges River Dolphins?

  1. Construction of dams and barrages on rivers

  2. Increase in the population of crocodiles in rivers

  3.  Getting trapped in fishing nets accidentally

  4. Use of synthetic fertilizers and other agricultural chemicals in crop-fields in the vicinity of rivers

  Select the correct answer using the code given below.
  A)
   1 and 2 only                 done clear
  B)
   2 and 3 only done clear
  C)
   1, 3 and 4 only  done clear
  D)
   1, 2, 3 and 4 done clear
  View Solution play_arrow

• question_answer100)
  Brominated flame retardants are used in many household products like mattresses and upholstery. Why is there some concern about their use?

  1. They are highly resistant to degradation in the environment.

  2. They are able to accumulate in humans and animals.

  Select the correct answer using the code given below.
  A)
   1 only              done clear
  B)
   2 only done clear
  C)
   Both 1 and 2                 done clear
  D)
   Neither 1 nor 2 done clear
  View Solution play_arrow

• question_answer101)
  With reference to 'Eco-Sensitive Zones', which of the following statements is/are correct?

  1. Eco-Sensitive Zones are the areas that are declared under the Wildlife (Protection) Act, 1972.

  2. The purpose of the declaration of Eco-Sensitive

  Zones is to prohibit all kinds of human activities in those zones except agriculture.

  Select the correct answer using the code given below.
  A)
   1 only              done clear
  B)
   2 only done clear
  C)
   Both 1 and 2                 done clear
  D)
   Neither 1 nor 2 done clear
  View Solution play_arrow

• question_answer102)
  Consider the following statements :

  1. Animal Welfare Board of India is established under the Environment (Protection) Act, 1986.

  2. National   Tiger   Conservation Authority is a statutory body.

  3. National Ganga River Basin Authority is chaired by the Prime Minister.

  Which of the statements given above is/are correct?
  A)
   1 only              done clear
  B)
   2 and 3 only done clear
  C)
   2 only              done clear
  D)
   1, 2 and 3 done clear
  View Solution play_arrow

• question_answer103)
  Which of the following have coral reefs?

  1. Andaman and Nicobar Islands

  2. Gulf of Kachchh

  3. Gulf of Mannar

  4. Sunderbans

  Select the correct answer using the code given below.
  A)
   1, 2 and 3 only    done clear
  B)
   2 and 4 only done clear
  C)
   1 and 3 only      done clear
  D)
   1, 2, 3 and 4 done clear
  View Solution play_arrow

• question_answer104)
  In India, the problem of soil erosion is associated which of the following?

  1. Terrace cultivation

  2. Deforestation

  3. Tropical climate

  Select the correct answer using the code given below.
  A)
   1 and 2 only                 done clear
  B)
   2 only 3 only done clear
  C)
   1 and 3 only                 done clear
  D)
   1, 2 and 3 done clear
  View Solution play_arrow

• question_answer105)
  The scientific view is that the increase in global temperature should not exceed  above pre-industrial level. If the global temperature increases beyond  above the pre-industrial level, what can be its possible impact/impacts on the world?

  1. Terrestrial biosphere tends toward a net carbon source.

  2. Widespread coral mortality will occur.

  3. All the global wetlands will permanently disappear.

  4. Cultivation of cereals will not be possible anywhere in the world.

  Select the correct answer using the code given below.
  A)
   1 only              done clear
  B)
   1 and 2 only done clear
  C)
   2, 3 and 4 only  done clear
  D)
   1, 2, 3 and 4 done clear
  View Solution play_arrow

• question_answer106)
  Which of the following are some important pollutants released by steel industry in India?

  1. Oxides of sulphur

  2. Oxides of nitrogen

  3. Carbon monoxide

  4. Carbon dioxide

  Select the correct answer using the code given below.
  A)
   1, 3 and 4 only  done clear
  B)
   1 and 3 only done clear
  C)
   1 and 4 only                 done clear
  D)
   1, 2, 3 and 4 done clear
  View Solution play_arrow

• question_answer107)
  Global climate change threatens coral reefs by

  1. increasing the temperature

  2. decreasing the temperature

  3. increasing the pH of the oceans

  4. decreasing the pH of the oceans

  Which of the above is/are correct?
  A)
   1 and 2            done clear
  B)
   2 and 3 done clear
  C)
   1 and 4            done clear
  D)
   2 and 4 done clear
  View Solution play_arrow

• question_answer108)
  With reference to ?Forest Carbon Partnership Facility?, which of the following statements is/ are correct?

  1. It is a global partnership of governments, businesses, civil society and indigenous peoples.

  2. It provides financial aid to universities, individual scientists and institutions involved in scientific forestry research to develop eco-friendly and climate adaptation technologies for sustainable forest management.

  3. It assists the countries in their 'REDD+ (Reducing Emissions   from   Deforestation   and Forest Degradation+)' efforts by providing them with financial and technical assistance.

  Select the correct answer using the code given below.
  A)
   1 only              done clear
  B)
   2 and 3 only done clear
  C)
   1 and 3 only                 done clear
  D)
   1, 2 and 3 done clear
  View Solution play_arrow

• question_answer109)
  With reference to 'dugong', a mammal found in India, which of the following statements is/an; correct?

  1. It is a herbivorous marine animal.

  2. It is found along the entire coast of India.

  3. It is given legal protection under Schedule I of the Wildlife (Protection) Act, 1972.

  Select the correct answer using the code given below.
  A)
   1 and 2            done clear
  B)
   2 only done clear
  C)
   1 and 3            done clear
  D)
   3 only done clear
  View Solution play_arrow

• question_answer110)
  What are the effects that IPCC has predicted regarding global warming?

  I. Earth's temperature will rise by 1-30°C in next few decades, leading to extreme weather changes (heat waves, hurricanes and severe winters), changes in ocean currents and marine life.

  II. If  concentration doubles. Earth's temperature may rise by .

  III. The biggest glacier in the Peruvian Andes was retreating by 5 meters per year some 20 years ago; today it is shrinking by 33 meters per year.

  IV. The Arctic Sea ice has thinned by 40% in the last two decades, while Mount Everest is losing height at the rate of 1.5 meters per year.

  A)
   Only I              done clear
  B)
   I & II done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer111)
  Which statement is correct regarding the steps taken to reduce global warming?

  I. Cleaning up and gasification of coal (for which technology is available) will result in lesser pollution.

  II. Increased use of natural gas contains only half of the carbon and no Sulphur.

  III. Renewable energy sources, such as wind, solar, photo-voltaic and fuel cells, tidal, etc.

  IV. Manufacture of fuel-efficient vehicles.

  A)
   I & II                            done clear
  B)
   Only III done clear
  C)
   Only II             done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer112)
  Which statement is correct regarding greenhouse gases?

  I. A greenhouse gas (GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range

  II. Water vapour contributes to 36-72% of Greenhouse effect

  III. Nitrous Oxide contributes to about 10% of Greenhouse effect

  IV. Ozone contributes to 3-7% of Greenhouse effect

  A)
   I & II                            done clear
  B)
   I, II & III done clear
  C)
   I, II & IV                      done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer113)
  Ozone layer in the outer atmosphere helps in:

  I. Reflecting radio waves and makes radio communication possible

  II. Absorbing U-V radiations

  III. Regulating the temperature of atmosphere

  IV. Absorbing cosmic ray particles

  A)
   I & II                            done clear
  B)
   Only II done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer114)
  Ozone depletion would impact the plant community in several ways. These include:

  I. Increase in photosynthesis

  II. Decline in water use efficiency

  III. Decline in yield of plants

  A)
   I & II                            done clear
  B)
   Only III done clear
  C)
   II & III              done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer115)
  Nitrogen Oxide is responsible for the depletion of Ozone layer, which of following is source of Nitrogen Oxide?

  I. Industrial emission

  II. Fertilizers which are used in agricultural activities

  III. Thermonuclear weapons

  A)
   I & II                            done clear
  B)
   Only III done clear
  C)
   Only II             done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer116)
  Which of the following statement is correct regarding CFC's and HCFC's?

  I. These chemicals are inert, non flammable, nontoxic, and lighter than air and can remain intact for years

  II. CFCs are commonly used in Air conditioners and the Refrigeration industry (Freon gas), aerosol propellants (in perfumes and deodorants), in the foam packaging industry (Styropor, Thermocol) and as solvents for greases and glues.

  III. They contain Chlorine and Fluorine, common being CFC 11, CFC 12, CFC 22 and CFC 13.

  A)
   I & II                            done clear
  B)
   II & III done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer117)
  Which statement is correct regarding deforestation?

  I. The process of clearance of forest by burning or logging is called deforestation

  II. The main reasons for deforestation are trees or derived charcoal are used as, or sold, for fuel or as a commodity, while cleared land is used as grassland for livestock, plantations of commodities, and settlements.

  III. Deforested areas usually sustain extensive adverse soil erosion and regularly damage into wasteland.

  A)
   I & II                            done clear
  B)
   II & III done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer118)
  Deforestation includes which of the following?

  I. Felling, and removal of forest litter

  II. Browsing

  III. Grazing and trampling of seedlings

  IV. Repeated lopping

  Select the correct answer:
  A)
   Only I              done clear
  B)
   I and III done clear
  C)
   III and IV                      done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer119)
  Consider the following statements

  I. As a greenhouse gas (GHG) methane is even more harmful than carbon dioxide

  II. Methane has been included in the list of six GHGs in Kyoto Protocol.

  Which of the statements given above is/are correct?
  A)
   Only I              done clear
  B)
   Only II done clear
  C)
   Both I&II                      done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer120)
  Increased level of carbon dioxide in the atmosphere would impact the plants in many ways. These can be:

  I. Decrease in photosynthetic productivity of plants

  II. Proliferation of weeds

  III. Increase in number of insects and other pests.

  A)
   I & II                            done clear
  B)
   II only done clear
  C)
   II & III              done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer121)
  Relative contributions of , , CFCs and N2O towards global warming are:

  I. 50%, 30%, 10%, and 10% respectively

  II. 60%, 20%, 14%, and 6% respectively

  III. 40 %, 30%, 20% and 10% respectively

  IV. None of the above

  A)
   Only II             done clear
  B)
   Only III done clear
  C)
   Only I              done clear
  D)
   None of the above done clear
  View Solution play_arrow

• question_answer122)
  What is denitrification?

  I. It prevents the discharge of nitrates in soil, and stops ground water pollution with nutrients.

  II. In this solids are separated from the liquid

  III. In this sewage goes through many chambers and chemical processes which reduce its toxicity.

  A)
   I & II                done clear
  B)
   Only I done clear
  C)
   II & III              done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer123)
  Which statement is correct regarding noise pollution?

  I. The word noise comes from the Latin word nausea meaning seasickness.

  II. The main source of noise is transportation system including rail noise, aircraft noise and vehicle noise

  III. Sound pollution is measured in decibels

  A)
   I & II                            done clear
  B)
   II & III done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer124)
  Chlorofluorocarbons, known as ozone-depleting substances, are used:

  I. In the production of plastic foams

  II. In the production of tubeless tyres

  III. In cleaning certain electronic components

  IV. As pressurizing agents in aerosol cans

  A)
   Only I              done clear
  B)
   I, III & IV done clear
  C)
   II & III              done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer125)
  Which of the following gases are responsible for acid rain in environment?

  I. Carbon dioxide and nitrogen

  II. Carbon monoxide and carbon dioxide

  III. Ozone and carbon dioxide

  IV. Nitrous oxide and Sulphur dioxide

  A)
   I & II                            done clear
  B)
   Only II done clear
  C)
   Only IV                        done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer126)
  Spraying of DDT on crops causes pollution of:

  I. Soil and Water

  II. Air and Soil

  III. Crops and Air

  IV. Air and Water

  A)
   I&II                              done clear
  B)
   II & III done clear
  C)
   Only I              done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer127)
  Which statement is correct regarding Agro-Chemicals?

  I. Agro chemicals are developed by the use of modern technology that depends on inorganic fertilizers and pesticides

  II. Excess use of these fertilizers can lead to immediate harmful effect or can also be long lasting.

  III. In combination with genetically enhanced varieties of crop species, agrochemicals have made significant contributions to the accomplishments of the "green revolution."

  A)
   I & II                            done clear
  B)
   Only II done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer128)
  Which statement is correct regarding acid rain?

  I. Acid rain is caused by a chemical reaction that starts when sulfur dioxide  and nitrogen oxides  are released into the air

  II. Sulfur dioxide and nitrogen oxides are highly soluble in water and can be carried very far by the wind

  III. Power plants release huge amount of sulfur dioxide and nitrogen oxides when they burn fossil fuels, like coal, to produce electricity which can cause acid rain

  A)
   I & II                            done clear
  B)
   II & III done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer129)
  Acid rain reacting with calcium forms:

  I. Calcium bicarbonate

  II. Calcium Nitrate

  III. Calcium Sulphate

  IV. Calcium Carbonate

  A)
   I & IV              done clear
  B)
   Only I done clear
  C)
   Only II             done clear
  D)
   Only III done clear
  View Solution play_arrow

• question_answer130)
  What among the below is/are the cause of ground water contamination?

  I. Septic tanks

  II. Septic tanks

  III. Landfills

  A)
   Only II             done clear
  B)
   I & III done clear
  C)
   II & III              done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer131)
  Which statement is correct regarding Ozone Hole?

  I. Ozone destruction rate is equal to the its formation rate

  II. Ozone formation and destruction keep on happening

  III. Ozone destruction rate is higher than its formation rate

  A)
   I & II                            done clear
  B)
   II & III done clear
  C)
   Only III            done clear
  D)
   Only I done clear
  View Solution play_arrow

• question_answer132)
  Which statement is not true regarding Ozone?

  I.   Ozone is covered under Montreal Protocol.

  II. Montreal protocol binds countries to adopt measures to curb ozone depleting substances.

  III. HFC was used to replace ozone depleting substances

  IV. Ozone is also covered under Kyoto Protocol.

  A)
   I & II                            done clear
  B)
   Only III done clear
  C)
   Only IV                        done clear
  D)
   II & III done clear
  View Solution play_arrow

• question_answer133)
  Which of the following is not the feedback of the example in which human activity is responsible for the global climatic changes in the temperature?

  I. Global warming causes snow to melt in Polar Regions

  II. Global warming causes increased rainfall, plant growth and photosynthesis

  III. Global warming causes increased  release from biomass decomposition

  IV. Tropical deforestation causes warming and drying so that remaining forests begin to decline

  A)
   I & II                done clear
  B)
   Only III done clear
  C)
   Only II             done clear
  D)
   II & IV done clear
  View Solution play_arrow

• question_answer134)
  What is effluent waste?

  I. This category of waste, contains, hazardous wastes that are harmful to human beings and hence should be stored and treated separately.

  II. These wastes include a high proportion of paper, cardboards and plastics.

  III. Domestic as well as industrial effluents that contaminate river water if allowed to flow unchecked.

  IV. All the waste resulting from the maintenance of streets, roads, parks, and schools, paper, dry leaves, animal wastes, sludge, carcasses of small animals and slaughter house wastes.

  A)
   I & II                done clear
  B)
   Only III done clear
  C)
   Only IV                        done clear
  D)
   II & IV done clear
  View Solution play_arrow

• question_answer135)
  What are the methods of collection of solid wastes?

  I.   Refuse storage which may sometimes require delivery of refuse by the householder over a considerable distance

  II. Door-to-door collection, where the collector enters the premises and collects the refuse and the householder is not involved in the collection process.

  III. Dumping in river or stream

  A)
   I & II                            done clear
  B)
   Only II done clear
  C)
   Only I              done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer136)
  Which statement is correct regarding radioactive waste material?

  I. This arises from civil nuclear activities as well as from defense related nuclear weapon activities

  II. The techniques used emphasizes on waste minimization and volume reduction

  III. Nuclear waste is categorized into high, intermediate and low levels depending on the level of radioactivity in it

  A)
   I & III               done clear
  B)
   Only III done clear
  C)
   Only I              done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer137)
  Which statement is correct regarding the disposal of High level waste produced from radioactive material?

  I. High level waste produced from the reprocessing plant is vitrified into a glassy form, enclosed in multiple barrier vessels

  II. They are stored for a temporary period of three to four decades in engineered vaults with essential observation services

  III. After cooling down in these storage facilities, waste vessels will be stored for long term in deep geological repositories

  A)
   I & II                            done clear
  B)
   Only II done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer138)
  Which statement is correct regarding plastic waste management?

  I.   Plastic was invented in 1960

  II. They are the products of polymer chemistry produced from the by- products of petroleum refining

  III. They are characterized into thermoplastics and thermosetting plastic

  A)
   I & II                            done clear
  B)
   II & III done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer139)
  Which sentence is correct regarding the manufacturing of plastic?

  I. All the varieties of plastics are manufactured from petrochemical based hydrocarbons

  II. The raw materials and intermediate products used in the manufacture of Polyvinyl chloride (PVC) - Ethylene, Chlorine, Hydrogen chloride. Vinyl Chloride Monomer (VCM), and Ethylene Dichloride (EDC) - are known hazardous materials

  III. Additives, fillers, and coloring pigments used in plastic goods can also exhibit non-hazardous properties

  A)
   I & II                            done clear
  B)
   Only II done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer140)
  What are the environmental issues regarding the manufacturing of plastics?

  I. Escape of gaseous hydrocarbons, chlorine, and hydrogen chloride gas into the atmosphere.

  II. Waste-water from the processes and wash-waters can carry pollutants.

  III. Dioxins can be liberated due to mishaps in the process.

  IV. Health and safety issue in the manufacture of PVC is the exposure of plant operators to Vinyl Chloride Monomer (VCM)

  A)
   I & II                            done clear
  B)
   II & III done clear
  C)
   Only IV                        done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer141)
  What are the advantages of using PVC in Water supply pipes and Industrial piping over GI pipes?

  I. They are heavy and plumbing work is difficult

  II. Corrosion problem is eliminated and hence corrosion related contamination of water is avoided and life of the pipes increases

  III. Inner surface of pipes may be made smooth to reduce friction losses, thus saving on electricity bills and conserving energy

  A)
   I & II                            done clear
  B)
   II & III done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer142)
  What are the problems from Indiscriminate Discarding of used Plastics?

  I.   They choke storm water drains, often causing overflow of storm water on roads.

  II. Being non-biodegradable they remain in the soil for a very long time, thus affecting the farm economy

  III. Direct transfer of molecular oxygen into water is also affected

  A)
   I & II                            done clear
  B)
   Only II done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer143)
  Which statement is correct regarding the rule of the Forests issued the Recycled Plastics Manufacture and Usage Rules 1999 which was amended in 2003 under the Environment (Protection) Act, 1986?

  I.  No vendor shall use carry bags and containers of recycled plastics for storing carrying and / or packaging of foodstuffs

  II. Carry bags and Container used for packaging of foodstuff shall be made of virgin plastic and of natural shade or white

  III. Minimum thickness of Carry bags made of virgin or recycled plastics must not be less than 20 microns

  A)
   I & II                            done clear
  B)
   II & III done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer144)
  What is the main health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?

  I. Increased skin cancer

  II. Damage to eyes

  III. Increased liver cancer

  IV. Reduced immune system

  A)
   I & II                            done clear
  B)
   III done clear
  C)
   II &III               done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer145)
  What are the negative effect regarding bio degradable plastics?

  I. The bio degradable plastics will add to the already piling up municipal garbage

  II. bio degradable plastics are expensive and the technology for manufacture is not easily available

  A)
   only I               done clear
  B)
   only II done clear
  C)
   Both I&II                      done clear
  D)
   only III done clear
  View Solution play_arrow

• question_answer146)
  Which of the following reasons does not help regulate global carbon dioxide concentrations?

  I. Alterations in rainfall patterns

  II. Storing carbon in the soil and biomass

  III. Absorbing carbon dioxide for photosynthesis

  IV. Releasing carbon dioxide following decay

  A)
   I & II                            done clear
  B)
   II &III done clear
  C)
   Only I              done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer147)
  The main function of ozone layer is:

  I.  Heating the stratosphere

  II. Maintaining the temperature of atmosphere

  III. Absorbing the ultraviolet solar radiation

  A)
   I & II                            done clear
  B)
   Only II done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer148)
  Which statement is correct regarding methane?

  I. Methane, also called "Marsh gas"

  II. It arises from rice paddies, wetlands, enteric fermentation in cattle, burning of wood, and landfills

  III. It is responsible for about 4-9% of Greenhouse effect.

  A)
   I & II                            done clear
  B)
   II &III done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer149)
  Which statement is correct regarding CFC's?

  I. They are 1000 times more heat absorbent than carbon dioxide

  II. They reach the atmosphere from refrigeration & air conditioning, aerosol sprays, and foam packaging industry.

  III. They are responsible for 30% of greenhouse effect

  A)
   I & II                            done clear
  B)
   II &III done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer150)
  Consider the following statements regarding Ozone:

  I. Ozone contributes to 3-7% of Greenhouse effect

  II. The largest net source of tropospheric ozone is influx from the stratosphere

  III. Large amounts of ozone are also produced in the troposphere by photochemical reactions, the amounts increasing with high levels of air pollution.

  A)
   I & II                            done clear
  B)
   II & III done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer151)
  What are the causes of deforestation?

  I.  Population   growth   and   over population and urbanization

  II. Globalization

  III. Dishonesty of government institutions

  A)
   Only I              done clear
  B)
   Only II done clear
  C)
   I & II                            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer152)
  Which statement is correct regarding acid rain?

  I. The term "acid rain" was coined in 1972 by Robert Angus Smith

  II. Rainfall with pH less than 5.6 is called Acid rain.

  III. Acid rain is caused by a chemical reaction that stall when sulfur dioxide  and nitrogen oxide (NOX) are released into the air

  A)
   I & II                            done clear
  B)
   Only II done clear
  C)
   II & III              done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer153)
  Lead and cadmium compounds are added as stabilizers in PVC. Which statement is correct regarding lead and cadmium?

  I. Lead and cadmium can leach out during human contact, or when disposed in land-fills

  II. Lead and cadmium are known neurotoxins and nephrotoxins respectively

  III. These chemicals are used in the manufacture of soft plastic items such as vinyl flooring sheets, soft toys etc. to increase their durability

  A)
   I & II                            done clear
  B)
   II & III done clear
  C)
   Only III            done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer154)
  Consider the following pairs : (IAS Prelims 2016)

  	Terms sometimes seen in the news	Their origin
  1.	Annex - I countries	Cartagena Protocol
  2.	Certified Emissions Reductions	Nagoya Protocol
  3.	Clean Development Mechanism	Kyoto Protocol

  Which of the pairs given above is/are correctly matched?
  A)
   1 and 2 only                 done clear
  B)
   2 and 3 only done clear
  C)
   3 only              done clear
  D)
   1, 2 and 3 done clear
  View Solution play_arrow

• question_answer155)
  What is 'Greenhouse Gas Protocol'? (IAS Prelims 2016)
  A)
   It is an international accounting tool for government and business leaders to understand, quantify and manage greenhouse gas emissions done clear
  B)
   It is an initiative of the United Nations to offer financial incentives to developing countries to reduce greenhouse gas emissions and to adopt ecofriendly technologies done clear
  C)
   It is an inter-governmental agreement ratified by all the member countries of the United Nations to reduce greenhouse gas emissions to specified levels by the year 2022 done clear
  D)
   It is one of the multilateral REDD+ initiatives hosted by the World Bank done clear
  View Solution play_arrow

• question_answer156)
  Consider the following statements: (IAS Prelims 2016)

  (1) The International Solar Alliance was launched at the United Nations Climate Change Conference in 2015.

  (2) The Alliance includes all the member countries of the United Nations.

  Which of the statements given above is/are correct?
  A)
   1 only              done clear
  B)
   2 only done clear
  C)
   Both 1 and 2                 done clear
  D)
   Neither 1 nor 2 done clear
  View Solution play_arrow

• question_answer157)
  With reference to the Agreement at the UNFCCC Meeting in Paris in 2015, which of the following statements is/are correct? (IAS Prelims 2016)

  1.  The Agreement was signed by all the member countries of the UN and it will go into effect in

  2017.

  2.  The Agreement aims to limit the greenhouse gas emissions so that the rise in average global temperature by the end of this century does not exceed  or even  above pre-industrial levels.

  3. Developed countries acknowledged their historical responsibility in global warming and committed to donate $ 1000 billion a year from 2020 to help developing countries to cope with climate change.

  Select the correct answer using the code given below.
  A)
   1 and 3 only                 done clear
  B)
   2 only done clear
  C)
   2 and 3 only                 done clear
  D)
   1, 2 and 3 done clear
  View Solution play_arrow

• question_answer158)
  'Net metering' is sometimes seen in the news in the context of promoting the (IAS Prelims 2016)
  A)
   production and use of solar energy by the households/consumers done clear
  B)
   use of piped natural gas in the kitchens of households done clear
  C)
   installation of CNG kits in motor-cars done clear
  D)
   installation of water meters in urban households done clear
  View Solution play_arrow

• question_answer159)
  On which of the following can you find the Bureau of Energy Efficiency Star Label? (IAS Prelims 2016)

  1. Ceiling fans

  2. Electric geysers

  3. Tubular fluorescent lamps

  Select the correct answer using the code given below.
  A)
   1 and 2 only                 done clear
  B)
   3 only done clear
  C)
   2 and 3 only                 done clear
  D)
   1, 2 and 3 done clear
  View Solution play_arrow

• question_answer160)
  In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of Air Quality Index? (IAS Prelims 2016)

  1. Carbon dioxide

  2. Carbon monoxide

  3. Nitrogen dioxide

  4. Sulfur dioxide

  5. Methane

  Select the correct answer using the code given below.
  A)
   1, 2 and 3 only done clear
  B)
   2, 3 and 4 only done clear
  C)
   1, 4 and 5 only done clear
  D)
   1, 2, 3, 4 and 5 done clear
  View Solution play_arrow

• question_answer161)
  Which of the following statements regarding 'Green Climate Fund' is/are correct? (IAS Prelims 2016)

  1. It is intended to assist the developing countries in adaptation and mitigation practices to counter climate change.

  2. It is founded under the aegis of UNEP, OECD,

  Asian Development Bank and World Bank.

  Select the correct answer using the code given below.
  A)
   1 only              done clear
  B)
   2 only done clear
  C)
   Both 1 and 2                 done clear
  D)
   neither 1 nor 2 done clear
  View Solution play_arrow