Why does physical weathering speed up the processes of chemical weathering? a) physical weathering requires abundant water, as does chemical weathering. b) physical weathering produces fresh surfaces for chemical weathering to attack. c) chemical weathering can occur only on small surfaces, not large ones. d) chemical weathering requires salt, which is provided by salt wedging.

B

Explanation:

Smaller objects have a bigger surface area to volume ration than large objects. Therefore, when physical weathering reduces rock to smaller pieces, the surface area in the rock increases for which chemical weathering can occur. This, therefore, speeds up the weathering process.

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