Which of the following describes a challenge presented by Canada's population?

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.

From the standpoint of geography,a is an internal rendering of an individual's known world

The creation of the trans-siberian railway allowed people to travel across russia. how could this railway impact russian culture?