SSC Ecology And Environment Sample Paper

done NCERT Sample Paper-1 Total Questions - 100    [Download]

• question_answer1)

  Consider the following statements regarding India's' energy policy:

  1. Today, India has one of the highest potentials for the effective use of renewable energy.

  2. India is the world's fifth largest producer of wind power.

  3. India has the world's 2nd largest coal reserves.

  Which of the above statements is/are correct?

  A)
  1 Only  
  done clear
  B)
  1 and 2 only
  done clear
  C)
  1 and 3 only     
  done clear
  D)
  1, 2 and 3
  done clear
  View Answer play_arrow

• question_answer2)
  'Heat-islands are produced due to
  A)
  Air pollution      
  done clear
  B)
  Water pollution
  done clear
  C)
  Land pollution
  done clear
  D)
  all of these
  done clear
  View Answer play_arrow

• question_answer3)
  For better survival of human Indian population, much is the most important step?
  A)
  Afforestation
  done clear
  B)
  Reduction in population density
  done clear
  C)
  Conservation of wild life including tribals
  done clear
  D)
  Both [a] and [b]
  done clear
  View Answer play_arrow

• question_answer4)
  Under ideal conditions, the birth rate is known as
  A)
  Population
  done clear
  B)
  Natality
  done clear
  C)
  Mortality           
  done clear
  D)
  None of the above
  done clear
  View Answer play_arrow

• question_answer5)
  An environmental audit helps in achieving the objective of
  A)
  Waste minimization
  done clear
  B)
  Resource optimization
  done clear
  C)
  Public awareness of the unit's environmental records
  done clear
  D)
  All the above
  done clear
  View Answer play_arrow

• question_answer6)
  If a certain human population has a higher than usual percentage of individuals with some genetic disorder. The most likely explanation is
  A)
  Gene flow         
  done clear
  B)
  natural selection
  done clear
  C)
  Genetic drift      
  done clear
  D)
  all of above
  done clear
  View Answer play_arrow

• question_answer7)
  The study of interaction between living organisms and environment is termed as
  A)
  Ecology
  done clear
  B)
  Ecosystem
  done clear
  C)
  Autecology        
  done clear
  D)
  Synecology
  done clear
  View Answer play_arrow

• question_answer8)
  Which of the following birds have become extinct?
  A)
  Carolina Parakeet
  done clear
  B)
  Peacock
  done clear
  C)
  Kirtland Warbler
  done clear
  D)
  Reed Bunting
  done clear
  View Answer play_arrow

• question_answer9)
  The 'flora and fauna in lakes or ponds are termed-as
  A)
  Lentic biota       
  done clear
  B)
  lotic biota
  done clear
  C)
  Abiotic biota     
  done clear
  D)
  field layer
  done clear
  View Answer play_arrow

• question_answer10)
  The plant yielding Sola pith (Aeschynomene aspera) highly exploited in India is
  A)
  Large sized tree
  done clear
  B)
  Herb
  done clear
  C)
  palm-like monocot
  done clear
  D)
  Perennial shrub with spongy floating stem
  done clear
  View Answer play_arrow

• question_answer11)
  In a forest ecosystem, the fungi come under the category of
  A)
  Decomposers     
  done clear
  B)
  primary producers
  done clear
  C)
  Secondary consumers     
  done clear
  D)
  tertiary consumers
  done clear
  View Answer play_arrow

• question_answer12)
  A biome characterized by hot summer, warm winter and treeless vegetation is
  A)
  Tropical deserts
  done clear
  B)
  steppe grasslands
  done clear
  C)
  Savannah grassland
  done clear
  D)
  temperate desert.
  done clear
  View Answer play_arrow

• question_answer13)
  The ecosystem of a pond is referred as
  A)
  Lotic                
  done clear
  B)
  lentic
  done clear
  C)
  Xeric    
  done clear
  D)
  benthic
  done clear
  View Answer play_arrow

• question_answer14)

  As per the International Union for Conservation of Nature (IUCN) there are 57 critically endangered species of animals in India. A taxon is critically endangered when it meets which of the following criteria

  1. Population have declined or will decrease, by greater than 80% over the last 10 years or three generations.

  2. Have a restricted geographical range.

  3. Small population size of less than 2500 individuals and continuing decline at 25% in 3 years or one generation.

  4. Very small or restricted population of fewer than 500 mature individuals.

  5. High probability of extinction in the wild.

  Which of the statements given above is/are true?

  A)
  2, 3, 4 and 5     
  done clear
  B)
  1, 2 and 5
  done clear
  C)
  3, 4 and 5         
  done clear
  D)
  All of the above
  done clear
  View Answer play_arrow

• question_answer15)
  Which of the following region is the richest in diversity and density of plants?
  A)
  Warm tropical
  done clear
  B)
  Equatorial belt
  done clear
  C)
  Cool artic zone
  done clear
  D)
  both Polar Regions
  done clear
  View Answer play_arrow

• question_answer16)
  The pyramid of energy, in a pond ecosystem, is always
  A)
  Linear  
  done clear
  B)
  inverted
  done clear
  C)
  Irregular
  done clear
  D)
  upright only
  done clear
  View Answer play_arrow

• question_answer17)
  The ozone layer is 'ozonosphere' which occurs in
  A)
  Thermosphere
  done clear
  B)
  troposphere
  done clear
  C)
  Stratosphere      
  done clear
  D)
  heterosphere
  done clear
  View Answer play_arrow

• question_answer18)
  In an ecosystem, bacteria are considered as
  A)
  micro-consumers
  done clear
  B)
         macro-consumers
  done clear
  C)
  Primary consumers         
  done clear
  D)
  Secondary consumers
  done clear
  View Answer play_arrow

• question_answer19)
  Find out the correct order "of succession levels in Xerarch.
  A)
  Lichen, moss stage, annual herb stage, perennial herb stage, scrub stage, forest
  done clear
  B)
  annual-herb stage, perennial herb stage, lichen moss stage, scrub stage, forest
  done clear
  C)
  Perennial herb stage, animal herb stage, lichen moss stage, scrub stage, forest
  done clear
  D)
  Scrub stage, forest, annual herb stage, perennial herb stage, lichen moss stage
  done clear
  View Answer play_arrow

• question_answer20)
  Influence of soil of plant behaviour is known as
  A)
  Edaphic factor
  done clear
  B)
  hygrophic factor
  done clear
  C)
  Topographic factor
  done clear
  D)
  geographic factor
  done clear
  View Answer play_arrow

• question_answer21)
  Algal blooms in a lake
  A)
  Leads to oxygen depletion
  done clear
  B)
  Increase \[C{{O}_{2}}\] level
  done clear
  C)
  Kills fishes and other organisms
  done clear
  D)
  all of the above.
  done clear
  View Answer play_arrow

• question_answer22)
  Minamata disease occurs due to toxic effects of
  A)
  Iron                  
  done clear
  B)
  copper
  done clear
  C)
  Fluorine
  done clear
  D)
  mercury
  done clear
  View Answer play_arrow

• question_answer23)
  Who defined ecology as the reciprocal relationship between organisms and their environments?
  A)
  Misra    
  done clear
  B)
  Haeckel
  done clear
  C)
  Odum  
  done clear
  D)
  Lamarck
  done clear
  View Answer play_arrow

• question_answer24)
  Acid rains are produced by
  A)
  Excess \[N{{H}_{2}}\] 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
  done clear
  View Answer play_arrow

• question_answer25)

  Consider the following statements:

  1. The area recorded as forests in the government records is called forest cover.

  2. A forest cover may or may not be a part of forest area. 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 and 2
  done clear
  View Answer play_arrow

• question_answer26)
  The most harmful environmental pollutants, are
  A)
  Wastes from fields
  done clear
  B)
  Human organic wastes
  done clear
  C)
  Non-biodegradable chemicals
  done clear
  D)
  Natural nutrients present in excess
  done clear
  View Answer play_arrow

• question_answer27)
  In a biosphere reserve, the area surrounding the core zone is called
  A)
  Buffer zone       
  done clear
  B)
  transition zone,
  done clear
  C)
  Peripheral zone
  done clear
  D)
         development zone
  done clear
  View Answer play_arrow

• question_answer28)
  Green-house effect is due to
  A)
  \[CO\]  
  done clear
  B)
  \[C{{O}_{2}}\]
  done clear
  C)
  \[N{{H}_{3}}\]
  done clear
  D)
  \[P{{O}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer29)
  Red data list is for enlisting
  A)
  Endemic species
  done clear
  B)
  Extent plants
  done clear
  C)
  Exotic species
  done clear
  D)
  Plants on verge of extinction
  done clear
  View Answer play_arrow

• question_answer30)
  Which of the following is the main factor of desertification?
  A)
  Tourism
  done clear
  B)
  irrigated agriculture
  done clear
  C)
  Over-grazing      
  done clear
  D)
  all of these
  done clear
  View Answer play_arrow

• question_answer31)
  Deciduous forests have
  A)
  Severe winters only
  done clear
  B)
  Warm summers only
  done clear
  C)
  Severe winters and warm summers
  done clear
  D)
  Less severe winters and warm summers
  done clear
  View Answer play_arrow

• question_answer32)
  Afforestation is useful for
  A)
  Reducing floods
  done clear
  B)
  Prevention of soil erosion
  done clear
  C)
  Increasing the fertility
  done clear
  D)
  All of these
  done clear
  View Answer play_arrow

• question_answer33)
  Part of biosphere reserve which is strictly prohibited and protected from any external interference is called
  A)
  Buffer zone       
  done clear
  B)
  core zone
  done clear
  C)
  Transition zone
  done clear
  D)
  all above
  done clear
  View Answer play_arrow

• question_answer34)
  Tropical dense forest is due to
  A)
  High temperature and excess rain
  done clear
  B)
  Low temperature and excess rain
  done clear
  C)
  High temperature and lesser rain
  done clear
  D)
  Low temperature and lesser rain
  done clear
  View Answer play_arrow

• question_answer35)
  The World Environment Day is celebrated on
  A)
  6th of June       
  done clear
  B)
  5th of June
  done clear
  C)
  6th of August
  done clear
  D)
  5th of May
  done clear
  View Answer play_arrow

• question_answer36)
  Which of the following is associated with conservation of rare plants and herbs?
  A)
  Gir                   
  done clear
  B)
  Bharatpur
  done clear
  C)
  Kaziranga          
  done clear
  D)
  Silent Vally
  done clear
  View Answer play_arrow

• question_answer37)
  The species of animal protected in Kaziranga Wildlife sanctuary is.
  A)
  Macacamulatta
  done clear
  B)
  Pantheratigris
  done clear
  C)
  Pantheraleo
  done clear
  D)
  Rhinoceros unicornis
  done clear
  View Answer play_arrow

• question_answer38)
  Soil carried by gravity is called'
  A)
  eolian   
  done clear
  B)
  colluvial
  done clear
  C)
  Alluvial 
  done clear
  D)
  glacial
  done clear
  View Answer play_arrow

• question_answer39)
  Rajaji National Park is situated in
  A)
  Tamil Nadu       
  done clear
  B)
  Karnataka
  done clear
  C)
  Uttarakhand      
  done clear
  D)
  U.P
  done clear
  View Answer play_arrow

• question_answer40)
  The top soil is darker and
  A)
  Drier than subsoil
  done clear
  B)
  Wetter than subsoil
  done clear
  C)
  Richer in Na and Mg
  done clear
  D)
  Contains more organic matter
  done clear
  View Answer play_arrow

• question_answer41)
  Which endangered animal is the source of the world's finest, lightest, warmest and most expensive wool-the shahtoosh?
  A)
  Nilgai   
  done clear
  B)
  Cheetal
  done clear
  C)
  Kashmir! Goat
  done clear
  D)
         Chiru
  done clear
  View Answer play_arrow

• question_answer42)
  Desert plants are generally
  A)
  Viviparous        
  done clear
  B)
  succulent
  done clear
  C)
  Herbaceous
  done clear
  D)
  heterophyllu
  done clear
  View Answer play_arrow

• question_answer43)

  The development of vegetation community in any ecosystem is affected by:

  1. Sunlight

  2. Soil texture

  3. Relief

  4. Human activity

  Select the correct answer using the codes given below.

  A)
  1, 2 and 3 only
  done clear
  B)
         1, 3 and 4 only
  done clear
  C)
  2, 3 and 4 only
  done clear
  D)
  1, 2, 3 and 4
  done clear
  View Answer play_arrow

• question_answer44)
  Most stable ecosystem is
  A)
  Ocean  
  done clear
  B)
  forest
  done clear
  C)
  Desert   
  done clear
  D)
  mountain
  done clear
  View Answer play_arrow

• question_answer45)
  Which of the following ecosystem has the highest primary productivity?
  A)
  Pond    
  done clear
  B)
  lake
  done clear
  C)
  Desert   
  done clear
  D)
  forest
  done clear
  View Answer play_arrow

• question_answer46)
  Which of the following constitute major secondary tropic level?
  A)
  Nektons
  done clear
  B)
  Zooplanktons
  done clear
  C)
  Phytoplanktons
  done clear
  D)
  Benthos
  done clear
  View Answer play_arrow

• question_answer47)
  Ecosystem consists of
  A)
  Producers
  done clear
  B)
  consumers
  done clear
  C)
  Decomposers     
  done clear
  D)
  all of these
  done clear
  View Answer play_arrow

• question_answer48)

  Biofuels are fuels extracted from plants and crops and these have various advantages. These include

  1. Increasing agricultural diversity.

  2. Reduced use of fertilizers.

  3. Renewable source of energy.

  Select the correct answer using the codes given below.

  A)
  1 and 3 only     
  done clear
  B)
  3 only
  done clear
  C)
  2 and 3 only     
  done clear
  D)
         1, 2 and 3
  done clear
  View Answer play_arrow

• question_answer49)
  Succession is
  A)
  Orderly process of community Change till stability
  done clear
  B)
  Gradual, convergent directional and continuous process
  done clear
  C)
  Series of biotic communities that appear gradually in a barren area
  done clear
  D)
  all of these
  done clear
  View Answer play_arrow

• question_answer50)
  The rate of conversion of light energy into chemical energy of organic molecules in an ecosystem is
  A)
  Net primary productivity
  done clear
  B)
  Gross primary productivity
  done clear
  C)
  Net secondary productivity
  done clear
  D)
  Gross secondary productivity
  done clear
  View Answer play_arrow

• question_answer51)
  Territoriality occurs as a result of
  A)
  Parasitism         
  done clear
  B)
  predation
  done clear
  C)
  Co-operation     
  done clear
  D)
  competition
  done clear
  View Answer play_arrow

• question_answer52)

  Consider the following statements about ecosystem stability:

  1. It increases with increase of number of links in the food web.

  2. It increases with the increase in length of food chain. 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 Answer play_arrow

• question_answer53)
  A hyper parasite
  A)
  Kills his host
  done clear
  B)
  Helps his host to reproduce
  done clear
  C)
  Completes life cycle in his host
  done clear
  D)
  Lives on the body of another parasite
  done clear
  View Answer play_arrow

• question_answer54)

  With reference to ecosystems, consider the following statements:

  1. Organisms at higher trophic level receive energy from more than one trophic level.

  2. Higher trophic levels tend to be more discrete than the lower ones. 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 Answer play_arrow

• question_answer55)
  The study of relationship between communities and environment is called
  A)
  Ecology
  done clear
  B)
  synecology
  done clear
  C)
  Autecology        
  done clear
  D)
  ethology
  done clear
  View Answer play_arrow

• question_answer56)

  Consider the following statements:

  1. No human activity is allowed inside tiger reserves.

  2. Tourism is allowed in national parks.

  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 Answer play_arrow

• question_answer57)
  The abundance of a species in a population, within its habitat, is called
  A)
  Niche density     
  done clear
  B)
  regional density
  done clear
  C)
  Relative density
  done clear
  D)
         absolute density
  done clear
  View Answer play_arrow

• question_answer58)
  Ionizing radiations are more dangerous to
  A)
  Highly specialized cells
  done clear
  B)
  Cells in which food is stored
  done clear
  C)
  Mature stable cells
  done clear
  D)
  Actively dividing cells
  done clear
  View Answer play_arrow

• question_answer59)
  Which of the following species are restricted to a given area?
  A)
  Sibling species
  done clear
  B)
         endemic species
  done clear
  C)
  alloptaric species
  done clear
  D)
  sympatric species
  done clear
  View Answer play_arrow

• question_answer60)
  Which of the following organism is likely to have more concentration of DDT in their bodies?
  A)
  Herbivores        
  done clear
  B)
         carnivores
  done clear
  C)
  Top carnivores
  done clear
  D)
  primary producers
  done clear
  View Answer play_arrow

• question_answer61)

  Consider the following statements about Coastal Regulation Zone Notification, 2011

  1. It expand the CRZ to include territorial waters as a protected zone.

  2. The MOEF has issued a separate notification titled island Protection Zone 2011 in relation to areas Andaman and Nicobar and Lakshadweep.

  3. Projects of Department of Atomic Energy is an exception to the list of prohibited activities.

  4. The no-development zone is 200 metres from the HTL. Which of the statements given above is/are true?

  A)
  1 and 2
  done clear
  B)
  1, 2 and 3
  done clear
  C)
  2, 3 and 4         
  done clear
  D)
  1, 2 and 4
  done clear
  View Answer play_arrow

• question_answer62)

  Which of these pairs are correctly matched?

  1. Minamata convention: mercury

  2. Stockholm convention: persistent organic pollutants

  3. Basel convention: lead

  Select the correct answer using the codes given below.

  A)
  1 and 2 only     
  done clear
  B)
  1 and 3 only
  done clear
  C)
  2 and 3 only     
  done clear
  D)
  1, 2 and 3
  done clear
  View Answer play_arrow

• question_answer63)
  Lead pollution causes damage to
  A)
  Liver                
  done clear
  B)
  kidney
  done clear
  C)
  Blood   
  done clear
  D)
  all of these
  done clear
  View Answer play_arrow

• question_answer64)

  Consider the following statements regarding Environmental Sustainability Index:

  1. The Environmental Sustainability Index (ESI) was a composite index published from 1999 to 2005

  2. It was superseded by the Environmental Performance Index in 2006.

  3. The EPI has been published in 2006, 2008, and 2013.

  A)
  1, 2 and 3 are correct
  done clear
  B)
  2 and 3 are correct
  done clear
  C)
  1 and 2 are correct
  done clear
  D)
  1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer65)
  The acid rain destroys vegetation because it contains
  A)
  Nitrates 
  done clear
  B)
  \[{{H}_{2}}S{{O}_{4}}\]
  done clear
  C)
  \[{{O}_{3}}\]   
  done clear
  D)
  \[CO\]
  done clear
  View Answer play_arrow

• question_answer66)
  Increase skin cancer and higher mutation rates are generally due to
  A)
  acid rains          
  done clear
  B)
  carbon dioxide
  done clear
  C)
  Ozone depletion
  done clear
  D)
  biomagnification
  done clear
  View Answer play_arrow

• question_answer67)

  The sources of mercury pollution include

  1. Coal fired thermal power plants.

  2. Supersonic jets.

  3. Automobiles.

  4. Waste incinerators

  Select the correct answer using the codes given below.

  A)
  1, 2 and 3 only
  done clear
  B)
  1, 3 and 4 only
  done clear
  C)
  1 and 3 only     
  done clear
  D)
  1 and 4 only
  done clear
  View Answer play_arrow

• question_answer68)
  One of the important effect of \[S{{O}_{2}}\] and \[S{{O}_{3}}\] on plants is
  A)
  Plasmolysis
  done clear
  B)
  Destruction of cell wall
  done clear
  C)
  Destruction of chlorophylls
  done clear
  D)
  Destruction of golgi bodies
  done clear
  View Answer play_arrow

• question_answer69)
  Which of the following is the most serious pollutant among sulphur compounds?
  A)
  Oxides of sulphur           
  done clear
  B)
  carbonyl sulphide
  done clear
  C)
  Carbon disulphide
  done clear
  D)
  Sulphates
  done clear
  View Answer play_arrow

• question_answer70)
  Which of the following is biodegradable pollutant?
  A)
  Plastic  
  done clear
  B)
  asbestos
  done clear
  C)
  Sewage 
  done clear
  D)
  polythene
  done clear
  View Answer play_arrow

• question_answer71)
  Enriched air if inhaled for long time causes
  A)
  allergy
  done clear
  B)
  Bronchitis
  done clear
  C)
  Disturbance of psychomotor function
  done clear
  D)
  Diarrhoea
  done clear
  View Answer play_arrow

• question_answer72)
  Positive pollution of soil is due to
  A)
  Reduction in soil productivity
  done clear
  B)
  Addition of wastes on soil
  done clear
  C)
  Excessive use of fertilizers
  done clear
  D)
  all of these
  done clear
  View Answer play_arrow

• question_answer73)
  The correct set of sanctuaries located in Bihar is/was
  A)
  Dalma, Kaziranga, Idduki and Chail
  done clear
  B)
  Hazaribagh, Nagi Dam, Palamau, Dalma
  done clear
  C)
  Bandipur, Cauvery, Dalma, Hazaribagh
  done clear
  D)
  Debrigarh, Palamau, Dalma, Mahanadi
  done clear
  View Answer play_arrow

• question_answer74)
  The process of evaporation and precipitation is known as
  A)
  Carbon cycle
  done clear
  B)
  nitrogen cycle
  done clear
  C)
  Calcium cycle
  done clear
  D)
  hydrological cycle
  done clear
  View Answer play_arrow

• question_answer75)
  One of the following is an endangered plant
  A)
  Lycopersicum
  done clear
  B)
  Dalbergia
  done clear
  C)
  Cedrus  
  done clear
  D)
  Rauwolfiia
  done clear
  View Answer play_arrow

• question_answer76)
  The first link in any food chain is green plants, because they
  A)
  Are widely distributed
  done clear
  B)
  Are firmly fixed to the soil
  done clear
  C)
  Carnivores than the herbivores
  done clear
  D)
  Fix atmospheric \[C{{O}_{2}}\] in presence of sunlight
  done clear
  View Answer play_arrow

• question_answer77)
  Ozone saves the biosphere by absorbing the high energy radiation called
  A)
  infra-red (IR)
  done clear
  B)
  ultraviolet ray
  done clear
  C)
  X-ray   
  done clear
  D)
  gamma rays
  done clear
  View Answer play_arrow

• question_answer78)
  The whale washed ashore dies because of
  A)
  Increase in body temperature
  done clear
  B)
  Incapability to breathe
  done clear
  C)
  Crushing of bones under body weight
  done clear
  D)
  Cracking of skin.
  done clear
  View Answer play_arrow

• question_answer79)
  In food chain, lion is a
  A)
  Producer           
  done clear
  B)
  primary consumer
  done clear
  C)
  Secondary consumer
  done clear
  D)
  tertiary consumer
  done clear
  View Answer play_arrow

• question_answer80)
  Major forest types in India are
  A)
  Tropical evergreen and tropical thorn
  done clear
  B)
  Temperate mixed and tropical deciduous
  done clear
  C)
  Tropical dry deciduous and tropical moist deciduous
  done clear
  D)
  Tropical evergreen and tropical moist deciduous.
  done clear
  View Answer play_arrow

• question_answer81)
  Life in biosphere is abundant between
  A)
  60 m below sea level to 600 m above sea level
  done clear
  B)
  600 m below sea level to 2000 m above sea level
  done clear
  C)
  200 m below sea level to 6000 m above sea level
  done clear
  D)
  11000 m below sea level to 9000 m above sea level
  done clear
  View Answer play_arrow

• question_answer82)
  The first biosphere reserve established in India for conserving the gene pool of flora and fauna and the life styles of Tribals is
  A)
  Nilgiri biosphere reserve
  done clear
  B)
  Nanda Devi biosphere reserve
  done clear
  C)
  Utharakhand biosphere reserve
  done clear
  D)
  Great Nicobar biosphere reserve
  done clear
  View Answer play_arrow

• question_answer83)
  Deforestation is the major causal agent of
  A)
  Depletion of natural resources
  done clear
  B)
  Environmental pollution
  done clear
  C)
  Desertification of habitat
  done clear
  D)
  All above
  done clear
  View Answer play_arrow

• question_answer84)
  Man-made ecosystem is
  A)
  Less in diversity
  done clear
  B)
  More in diversity
  done clear
  C)
  Man does not make ecosystem
  done clear
  D)
  More stable than natural ecosystem
  done clear
  View Answer play_arrow

• question_answer85)
  Which of the following bird has gained importance as wild life in recent years?
  A)
  Phesant
  done clear
  B)
  Egret
  done clear
  C)
  Indian Bustard
  done clear
  D)
         Pelican
  done clear
  View Answer play_arrow

• question_answer86)
  In an upright pyramid of biomass, the herbivores occupy the position
  A)
  Four                 
  done clear
  B)
  three
  done clear
  C)
  Two     
  done clear
  D)
  one
  done clear
  View Answer play_arrow

• question_answer87)

  Which of the following statements about the steps for conservation of elephants announced by the government recently is/are correct?

  I. Elephant has been declared a national heritage animal

  II. The government will set up a National Elephants Conservation Authority (NECA)

  III. The steps are based on the task force headed by noted wildlife conservationist K. UllasKaranth

  A)
  I only   
  done clear
  B)
  I and II only
  done clear
  C)
  II and III only    
  done clear
  D)
  I and III only
  done clear
  View Answer play_arrow

• question_answer88)
  The primary succession in a sere is
  A)
  Sub sere
  done clear
  B)
  meso sere
  done clear
  C)
  Pioneer sere
  done clear
  D)
  none of these
  done clear
  View Answer play_arrow

• question_answer89)
  Biological equilibrium can be maintained between
  A)
  Producer and consumer
  done clear
  B)
  Consumer and decomposer
  done clear
  C)
  Producer and decomposer
  done clear
  D)
  Producer, consumer and decomposer
  done clear
  View Answer play_arrow

• question_answer90)
  The lentic ecosystem includes which of following water?
  A)
  Ram     
  done clear
  B)
  running
  done clear
  C)
  Standing           
  done clear
  D)
  gravitational
  done clear
  View Answer play_arrow

• question_answer91)
  The lower most layer of atmosphere, in which mart and other living organisms exist, is called
  A)
  Mesosphere       
  done clear
  B)
  Stratosphere
  done clear
  C)
  Troposphere      
  done clear
  D)
  Thermosphere
  done clear
  View Answer play_arrow

• question_answer92)
  Which of the following pair of geographical areas show maximum biodiversity in our country?
  A)
  Kerala and Punjab
  done clear
  B)
  Eastern Ghats and West Bengal
  done clear
  C)
  Sundarbans and Rann of Kutch
  done clear
  D)
  Eastern Himalayas and Western Ghats
  done clear
  View Answer play_arrow

• question_answer93)
  Which is the most effective way to conserve the plant diversity of an area?
  A)
  Developing seed bank
  done clear
  B)
  Tissue culture method
  done clear
  C)
  Creating botanical garden
  done clear
  D)
  Creating biosphere reserve
  done clear
  View Answer play_arrow

• question_answer94)
  The non-point pollution of river water involves discharge of pollutants through
  A)
  Urban sewage drains       
  done clear
  B)
  industrial effluents
  done clear
  C)
  Agricultural fields
  done clear
  D)
  both and [b]
  done clear
  View Answer play_arrow

• question_answer95)
  The \[S{{O}_{2}}\] pollution affect which of the following cell component?
  A)
  Nucleus
  done clear
  B)
  vacuole
  done clear
  C)
  Chloroplast       
  done clear
  D)
  mitochondria
  done clear
  View Answer play_arrow

• question_answer96)
  The basic component of the smog is
  A)
  PAN                 
  done clear
  B)
  PBN
  done clear
  C)
  Ozone  
  done clear
  D)
  all of these
  done clear
  View Answer play_arrow

• question_answer97)
  Spraying of DDT on crops causes pollution of
  A)
  Air and water
  done clear
  B)
  soil and air
  done clear
  C)
  Crops and air    
  done clear
  D)
  soil and water
  done clear
  View Answer play_arrow

• question_answer98)
  Sewage water can be purified for recycling with the action of
  A)
  Fishes   
  done clear
  B)
  penicillin
  done clear
  C)
  Aquatic plant
  done clear
  D)
  micro-organisms
  done clear
  View Answer play_arrow

• question_answer99)
  Knock knee disease is due to
  A)
  Hormonal imbalance
  done clear
  B)
  Genetical abnormality in males
  done clear
  C)
  Deficiency in tyrosine amino acid
  done clear
  D)
  Excess fluoride concentration in water body
  done clear
  View Answer play_arrow

• question_answer100)
  Planting of several rows of coniferous trees, along the highways, checks
  A)
  Heat pollution
  done clear
  B)
         thermal pollution
  done clear
  C)
  Noise pollution
  done clear
  D)
  none of these
  done clear
  View Answer play_arrow