26. Assertion (A) : Circum-Pacific belt accounts for major percentage share of world's total earthquakes of varying magnitude and deep focus.
    Reason (R) : Maximum occurrence of earthquakes along Circum-Pacific belt is caused by divergent motion of tectonic plates and consequent formation of faults.
    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 a 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: C

   NA

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27. Consider the following statements
    The circum Pacific belt is highly prone to the occurrence of earthquakes because it is a zone of
    1. Young folded mountains.
    2. Active volcanoes.
    3. Divergent place boundaries.
    4. Convergent plate boundaries.
    Which of the statements given above are correct ?

1. 1. 1, 2 and 3

   
   
   

   2. 1, 2 and 4

   
   
   

   3. 2, 3 and 4

   
   
   

   4. 1, 3 and 4

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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28. Match of the following List - I and List - II
    

    	List - I		List - II
    F.	Japan	1.	Etna
    G.	Hawai	2.	Laki
    H.	Sicily	3.	Mauna loa
    J.	Iceland	4.	Fujiyama

    Code :

    	F	G	H	J
    A.	1	2	3	4
    B.	4	3	2	1
    C.	3	2	1	4
    D.	3	4	1	2

1. 1. A.

   
   
   

   2. B.

   
   
   

   3. C.

   
   
   

   4. D.

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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29. Magma that reaches earth's surface and then solidifies is called

1. 1. granite

   
   
   

   2. lava

   
   
   

   3. quartaz

   
   
   

   4. silicates

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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30. Assertion (A) : The location of the epicenter of an earthquake may be estimated using the time-lag between the arrival of 'P' and 'S' waves.
    Reason (R) : The 'L' wave cannot start until the 'P' wave hits the surface.
    Code

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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