151. Consider the following pairs
     A. Podzolization - Eluviatior of clays, organic matter calcium, sodium, iron, and aluminium out of the A horizon
     
     B. Gleization - Accumulation of organic matter in a swampy environment
     Which of the pair (s) given above is / are correctly matched .

1. 1. A only

   
   
   

   2. B only

   
   
   

   3. Both A and B

   
   
   

   4. Neither A nor B

   
   
   

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   NA

   Correct Option: A

   NA

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152. Assertion (A) : Laterite soils are reddish in colour and poor in humus and plant nutrients.
     Reason (R) : In humid tropical climate, excessive leaching takes place under alternative arid and humid conditions.
     Code.

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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   NA

   Correct Option: A

   NA

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153. Consider the following statements
     Low soil fertility in Rainy Tropics can be caused by
     1. high temperature and heavy rainfall.
     2. eluviations and leaching.
     3. the existence of an extremely active bacterial life on the forest floor.
     Of these statements
     

1. 1. 1, 2 and 3 are correct

   
   
   

   2. 1 and 2 are correct

   
   
   

   3. 2 and 3 are correct

   
   
   

   4. 1 and 3 are correct

   
   
   

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   NA

   Correct Option: B

   NA

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154. Which of the following has / have salt marshes as an ideal place for its / their growth ?
     1. Halophytes
     2. Mesophytes
     3. Xerophytes
     Select the correct answer using given below

1. 1. 1 only

   
   
   

   2. 1 and 2

   
   
   

   3. 2 only

   
   
   

   4. 1 and 3

   
   
   

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   NA

   Correct Option: A

   NA

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155. Which one of following statements is not correct ?

1. 1. Highly weathered tropical and subtropical soils are called Oxisols

   
   
   

   2. Grassland soils rich in organic matter and high in bases are called Mollisols

   
   
   

   3. Soils in waterlogged areas with high organic matter are called Histosols

   
   
   

   4. Young soils with no horizons are called Inceptisols

   
   
   

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   NA

   Correct Option: D

   NA

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