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Physical weathering caused by the action of freezing water

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Answer: Physical weathering is caused by the effects of changing temperature on rocks, causing the rock to break apart. The process is sometimes assisted by water. Freeze-thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart.

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User Tushar Balar
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Answer:

Frost action involves the ~weathering~ processes caused by repeated cycles of freezing and thawing.

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User MLN
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