What is the value of sin 30°/4?

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.

Stages 1 and 4 of the demographic transition are similar in that

Weathering is an example of an external force of change. question 2 options: true false