Explain how chemical weathering differs from physical weathering.
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in chemical weathering the chemical composition of the rocks changes while in physical weathering only the shape and size of the rocks changes
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Chemical weathering:- The erosion or disintegration of rocks, building materials, etc., caused by chemical reactions (chiefly with water and substances dissolved in it) rather than by mechanical processes.
Physical weathering:- 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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