If DEFG is a square, find m

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.

Why is terracing used in southeast asian agriculture?

Sink holes may eventually for to join a. wide valleys b. zone of aeration c. dripstones d. aquifer