In what ways did trade develop the early states and kingdoms in africa?

This is the mountain range known as the alps. which of these statements regarding the alps is true? a) the alps are the largest mountain range in asia. b) the alps protect the roman empire from invasion. c) the alps were key in preventing england from being conquered in warfare. d) the alps prevented the roman empire from taking control of most of europe.

The physical feature that makes up part of the border between canada and the united states is the

What has contributed to the growth of agriculture as big business in the midwest