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What does physical weathering involve?

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  1. 3 May, 05:07
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    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.

    not sure if this is what you meant
  2. 3 May, 05:25
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    Physical weathering involves the gradual breaking down of rocks through erosion
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