question_answer 1)
Green house effect is warming due to
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question_answer 2)
Acid rain is due to increase in atmospheric concentration of
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question_answer 3)
The two great industrial tragedies namely, MIC and Chernobyl tragedies respectively occurred where and at which time?
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question_answer 4)
If there was no \[C{{O}_{2}}\] in the earth's atmosphere, the temperature of earth's surface would be
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question_answer 5)
How carbon monoxide, emitted by automobiles, prevents transport of oxygen in the body tissues?
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question_answer 6)
What is B.O.D.?
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question_answer 7)
Which one of the following pairs is mismatched?
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question_answer 8)
Acid rain concentrated in the eastern portions of the United States is primarily the result of
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question_answer 9)
Alien species that cause the most harm are those that
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question_answer 10)
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:
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question_answer 11)
In clean water the concentration of
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question_answer 12)
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:
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question_answer 13)
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?
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question_answer 14)
Health problems associated with indoor air pollution in developing countries is most commonly associated with
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question_answer 15)
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?
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question_answer 16)
Recent studies indicate that wo of the most dangerous components of air pollution around major cities in the developed nations are:
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question_answer 17)
The decline of the polar ice caps because of increasing temperatures at the poles will
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question_answer 18)
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:
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question_answer 19)
The evolution of pesticide resistance resurgence, and secondary-pest outbreaks are only some of the problems that result from reliance on
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question_answer 20)
The most dramatic temperature shifts in the past few decades have been
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question_answer 21)
The most effective way to reduce GHG emissions is to increase
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question_answer 22)
The most likely sustainable solutions of ecological problems are
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question_answer 23)
The negative impacts of ozone pollution on forests are expected to increase as
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question_answer 24)
The pesticide that directly attacks the nervous system is
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question_answer 25)
The pesticides that also function as endocrine disruptors cause disease by
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question_answer 26)
The quality of the final treated wastewater effluent from a modern treatment plant is typically:
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question_answer 27)
Brightly colored antique children's toys from before 1970 may be colored with paints that are contaminated with:
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question_answer 28)
By design, the molecules that resist biodegradation and include some of the most problematic persistent organic pollutants are the :
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question_answer 29)
Carcinogens arc dangerous because they affect
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question_answer 30)
CFCs primarily contribute to the destruction of the ozone by:
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question_answer 31)
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:
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question_answer 32)
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?
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question_answer 33)
Freshwater becomes polluted:
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question_answer 34)
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
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question_answer 35)
In general, temperatures along an ocean coastline vary less than temperatures 100 miles inland. This moderation of temperatures along coastlines is because
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question_answer 36)
Ozone levels increase in the atmosphere when volatile organic compounds (VOCs) are present because:
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question_answer 37)
The greatest progress in reducing atmospheric levels of lead pollution resulted from
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question_answer 38)
The inside of a car or greenhouse would not heat up as much in the presence of sunshine if
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question_answer 39)
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?
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question_answer 40)
Which of the following represents an alarming positive feedback loop of global warming ?
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question_answer 41)
Which one of the following generally increases the pollution of the air?
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question_answer 42)
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:
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question_answer 43)
The Clean Development Mechanism (CDM), a mechanism to reduce greenhouse gas emission as per Kyoto Protocol implies that
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question_answer 44)
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
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question_answer 45)
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
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question_answer 46)
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:
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question_answer 47)
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 :
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question_answer 48)
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:
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question_answer 49)
The most widespread negative health impact of air pollution is the
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question_answer 50)
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.
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question_answer 51)
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.
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question_answer 52)
Which one of the following statements best reflects the overall position of current science on the role of biodiversity in ecosystems?
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question_answer 53)
Widely applying pesticides may lead to resurgence and secondary-pest outbreak because:
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question_answer 54)
Protection of endangered species by preserving the entire ecosystem is known as:
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question_answer 55)
Ramsar Convention 1971 aimed at the conservation of
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question_answer 56)
Building on scientific research and careful measurements, the 1987 Montreal Protocol represented :
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question_answer 57)
Over the past 20 years, vultures in India and Pakistan have declined by more than 95 % due to :
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question_answer 58)
'El Nino' associated with the formation of the South West Monsoon of India is
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question_answer 59)
Ozone holes are more pronounced at the
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question_answer 60)
Acid rains are produced by
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question_answer 61)
?Bio Carbon Fund Initiative for Sustainable Forest Land-scopes? is managed by the (IAS Prelims 2015)
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question_answer 62)
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)
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question_answer 63)
What is Rio+20 Conference, of ten mentioned in the news? (IAS Prelims 2015)
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question_answer 64)
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.
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question_answer 65)
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
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question_answer 66)
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?
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question_answer 67)
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
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question_answer 68)
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
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question_answer 69)
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?
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question_answer 70)
Gases commonly referred as greenhouse gases are :
1. \[C{{H}_{4}}\] 2. \[C{{O}_{2}}\] 3. CFC 4. \[N{{H}_{3}}\]
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question_answer 71)
Fertilizers cause
1. eutrophication of water bodies 2. survival of most microorganisms 3. destruction of crumb structure of soil 4. all the above
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question_answer 72)
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.
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question_answer 73)
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.
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question_answer 74)
Ozone layer can be destroyed by pollutants such as
1. Hydrocarbons 2. Carbon mono oxide 3. Sulphur dioxide 4. Nitrogen oxides
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question_answer 75)
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
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question_answer 76)
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.
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question_answer 77)
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
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question_answer 78)
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
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question_answer 79)
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.
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question_answer 80)
Which of the following countries suffer from the acid rains?
1. Canada 2. France 3. Norway 4. Germany
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question_answer 81)
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.
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question_answer 82)
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
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question_answer 83)
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.
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question_answer 84)
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.
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question_answer 85)
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.
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question_answer 86)
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.
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question_answer 87)
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?
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question_answer 88)
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.
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question_answer 89)
The safest method for biomedical waste disposal is:
1. Incineration 2. Autoclaving 3. Sharp pit encapsulation 4. Precipitation
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question_answer 90)
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
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question_answer 91)
Excessive exposure of humans to UV-rays results in
1. damage to immune system 2. damage to lungs 3. skin cancer 4. peptic ulcers
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question_answer 92)
Gases commonly referred as greenhouse gases are :
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question_answer 93)
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
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question_answer 94)
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
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question_answer 95)
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
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question_answer 96)
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?
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question_answer 97)
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.
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question_answer 98)
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.
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question_answer 99)
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
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question_answer 100)
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.
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question_answer 101)
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.
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question_answer 102)
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.
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question_answer 103)
Which of the following have coral reefs?
1. Andaman and Nicobar Islands 2. Gulf of Kachchh 3. Gulf of Mannar 4. Sunderbans
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question_answer 104)
In India, the problem of soil erosion is associated which of the following?
1. Terrace cultivation 2. Deforestation 3. Tropical climate
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question_answer 105)
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.
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question_answer 106)
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
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question_answer 107)
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
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question_answer 108)
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.
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question_answer 109)
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.
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question_answer 110)
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 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.
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question_answer 111)
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.
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question_answer 112)
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
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question_answer 113)
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
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question_answer 114)
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
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question_answer 115)
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
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question_answer 116)
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.
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question_answer 117)
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.
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question_answer 118)
Deforestation includes which of the following?
I. Felling, and removal of forest litter II. Browsing III. Grazing and trampling of seedlings IV. Repeated lopping
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question_answer 119)
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?
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question_answer 120)
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.
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question_answer 121)
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
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question_answer 122)
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.
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question_answer 123)
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
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question_answer 124)
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
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question_answer 125)
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
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question_answer 126)
Spraying of DDT on crops causes pollution of:
I. Soil and Water II. Air and Soil III. Crops and Air IV. Air and Water
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question_answer 127)
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."
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question_answer 128)
Which statement is correct regarding acid rain?
I. Acid rain is caused by a chemical reaction that starts when sulfur dioxide 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
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question_answer 129)
Acid rain reacting with calcium forms:
I. Calcium bicarbonate II. Calcium Nitrate III. Calcium Sulphate IV. Calcium Carbonate
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question_answer 130)
What among the below is/are the cause of ground water contamination?
I. Septic tanks II. Septic tanks III. Landfills
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question_answer 131)
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
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question_answer 132)
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.
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question_answer 133)
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 IV. Tropical deforestation causes warming and drying so that remaining forests begin to decline
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question_answer 134)
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.
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question_answer 135)
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
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question_answer 136)
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
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question_answer 137)
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
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question_answer 138)
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
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question_answer 139)
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
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question_answer 140)
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)
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question_answer 141)
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
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question_answer 142)
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
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question_answer 143)
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
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question_answer 144)
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
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question_answer 145)
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
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question_answer 146)
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
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question_answer 147)
The main function of ozone layer is:
I. Heating the stratosphere II. Maintaining the temperature of atmosphere III. Absorbing the ultraviolet solar radiation
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question_answer 148)
Which statement is correct regarding methane?
I. Methane 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.
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question_answer 149)
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
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question_answer 150)
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.
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question_answer 151)
What are the causes of deforestation?
I. Population growth and over population and urbanization II. Globalization III. Dishonesty of government institutions
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question_answer 152)
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
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question_answer 153)
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
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question_answer 154)
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?
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question_answer 155)
What is 'Greenhouse Gas Protocol'? (IAS Prelims 2016)
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question_answer 156)
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?
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question_answer 157)
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 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.
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question_answer 158)
'Net metering' is sometimes seen in the news in the context of promoting the (IAS Prelims 2016)
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question_answer 159)
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
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question_answer 160)
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
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question_answer 161)
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.
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above pre-industrial level. If the global temperature increases beyond 
concentration doubles. Earth's temperature may rise by 
. 
, CFCs and N2O towards global warming are: 
and nitrogen oxides 
are released into the air 
, also called "Marsh gas" 
and nitrogen oxide (NOX) are released into the air 
or even 
above pre-industrial levels. 