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Question

The repeated process of freezing and melting which ultimately breaks up the rock is known as .

A
exfoliation
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B
frost action
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C
granular freezing
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Solution

The correct option is B frost action
Frost action happens in regions where the temperature drops below freezing point of water. It occurs due to alternate freezing of water that accumulates between sheets of ice. The repeated freezing and melting of this water ultimately disintegrates the rock, resulting in weathering.

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