Explain why taking a wolf out of a temperature forest ecosystem could cause thrre to be less trees

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.

People make choices about how to use resources.

Pollution from one country can affect another. for example, south korea is especially affected by pollution and dust storms that come from