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Which of the following statements describes the difference between physical and chemical weathering? a. Physical weathering is caused by ice, while chemical weathering is caused only by water. b. Chemical weathering changes the composition of a rock, while physical weathering does not. c. Chemical weathering affects all kinds of rocks, while physical weathering does not.

Verified Answer :

Physical weathering is caused by physical interactions whereas Chemical weathering is caused by chemical reaction with the surface.
Hence,the right answer is :

b. Chemical weathering changes the composition of a rock, while physical weathering does not.

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