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Physical Weathering

Repeated expa...

Question

Repeated expansion and contraction causes stress on the _____, which causes the rock to disintegrate into blocks.

A

joint of rocks

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B

surface of rocks

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C

core of rocks

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D

tip of rocks

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Solution

The correct option is A joint of rocks
Block disintegration generally occurs in non-crystalline rocks. Repeated expansion and contraction develops stress on the joints of the rocks, which causes the rock to disintegrate into blocks.

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