Why do you think east and west africa saw a series of kingdoms develop within the same general areas? someone halp.

What was the midwest states often called because they were located in the center of the nation

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

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.