How does physical weathering take place
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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.These examples illustrate physical weathering:
Swiftly moving water. Rapidly moving water can lift, for short periods of time, rocks from the stream bottom. ...
Ice wedging. Ice wedging causes many rocks to break. ...
Plant roots. Plant roots can grow in cracks.
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