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Subject :NSO    Class : Class 5

Which of the following is the correct reason for the occurrence of earthquake ?

(A) Too many buildings are in one location

(B) The Moon pulls on Earth's surface

(C) Pressure builds up and is suddenly released

(D) Underground explosions take place.


Ans 1:

Class : >Class 5
C

Ans 2:

Class : >Class 5

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