21. Primitive people practice animal rearing in the tropical grasslands of

1. 1. Brazil

   
   
   

   2. Northern Australia

   
   
   

   3. East Africa

   
   
   

   4. Orinoco Basin in South America

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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22. Assertion : The tundra environment is characteriized by a few important climatic and environments elements.
    Reason (R) : The Tundra biomes are found in Arctic or Alpine regions

1. 1. Both (A) and (R) are true and (R) is the correct explanation of (A)
      

   
   
   

   2. Both (A) and (R) are 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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23. Lianos is the name of tropical grassland in

1. 1. Africa

   
   
   

   2. Asia

   
   
   

   3. S. America

   
   
   

   4. N.America

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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24. Consider the following areas
    1. Orinoco basin in South America
    2. Zaire basin in Africa
    3. New Guinea
    4. Isthumus of Central America
    Which of the above said areas have tropical rain forests ?

1. 1. 1 and 3

   
   
   

   2. 1, 2 and 4

   
   
   

   3. 2, 3 and 4

   
   
   

   4. 1, 2, 3 and 4

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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25. The tallest trees of the world are found in the

1. 1. equatorial biome

   
   
   

   2. tropical-deciduous biome

   
   
   

   3. temperate rain-forest biome

   
   
   

   4. mediterranean biome

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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