If the Earth were to spin twice as fast as it does now, how many hours would be in one day(one complete spin)? *

Why have the aztec ruins in mexico city not been dug up?

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.

How did southerners view andrew johnson and republicans in congress