26. The mapping of which of the following is most difficult ?

1. 1. Mountains

   
   
   

   2. Plateau and Plains

   
   
   

   3. Interior of the earth

   
   
   

   4. Oceans and their depth

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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27. Which of the following is present in the largest amount in terms of percent by mass in the earth 's crust

1. 1. Silicon

   
   
   

   2. Oxygen

   
   
   

   3. Carbon

   
   
   

   4. Calcium

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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28. An intrusion of magma along a bedding plane is called a

1. 1. Dyke

   
   
   

   2. Still

   
   
   

   3. Batholith

   
   
   

   4. Lacolith

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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29. Which of the following features may occur when lava cool at the surface ?

1. 1. Basalt plateau

   
   
   

   2. Still

   
   
   

   3. Batholith

   
   
   

   4. Dyke

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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