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Subject :NSO    Class : Class 5

What most likely caused these mountains to have a rough surface?

(A) Sunlight heated the surface and the rocks cracked.

(B) Rocks were slowly broken down and eroded.

(C) Seasons have gotten warmer over the past several years.

(D) Ocean waves crashed against the surface in the distant past.

Ans 1:

Class : Class 4

Ans 2:

Class : Class 5

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