The volcanoes and deep valleys of east africa are related to a

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.

Suppose that tou work for a fried snack food. company. news channels have televised reports encouraging people to eat heathly snacks.write a report to your manager that explains the recent decrease in sales and offer ways that the company can reverse this trend

What was the first official pair of sister cities?