1. Consider the following statements
   Majuli, the largest river island in the world is environmentally degraded due to
   1. floods
   2. erosion
   3. increasing population pressure
   4. development of statements are correct ?

1. 1. 1 and 4

   
   
   

   2. 1 and 3

   
   
   

   3. 1, 2 and 3

   
   
   

   4. 2, 3 and 4

   
   
   

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   NA

   Correct Option: A

   NA

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2. The first research project programme which focused on the EI Nino-Southern Oscillation and its predictability was called

1. 1. Climate Variability and Predictability

   
   
   

   2. Global Energy and Water Cycle Experiment (GEWEX)

   
   
   

   3. Global Change and Terrestrial Ecosystem (GCTE)

   
   
   

   4. Tropical Ocean and Global Atmosphere (TOGA)

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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3. Consider the following statements
   1. The boundary of a National Park is circumscribed by legislation wheres that of a Biosphere Reserves is no t circumscribed by legislation.
   2. In a National Park, Particular attention is paid to the conservation of genepools whereas it is not so in a Wildlife Sanctuary.
   Which of the statement (s) given above is / are correct ?

1. 1. 1 only

   
   
   

   2. 2 only

   
   
   

   3. Both 1 and 2

   
   
   

   4. Neither 1 nor 2

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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4. Assertion (A) : After carbon, nitrogen is the most abundant element in the biosphere.
   Reason (R) : Nitrogen is essential for synthesizing the living matter in nature.
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1. 1. Both (A) and (R) are individually true and (R) is the correct explanation of (A)
      

   
   
   

   2. Both (A) and (R) are individually true but (R) is not the correct explanation of (A)
      

   
   
   

   3. (A) is true but (R) is false
      

   
   
   

   4. (A) is false but (R) is true
      

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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5. Which one of the following statements is not correct ?
   

1. 1. The energy levels within a food chain are called trophic levels

   
   
   

   2. In deep oceans primary production is almost

   
   
   

   3. The primary consumers are called autotrophs

   
   
   

   4. The decomposers are called saprotrophs

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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