Rana's were responsible themselves for their downfall. justify it.

According to thorstein veblen, a successful businessman would be most likely to demonstrate his worth to others by:

What extraordinary role does learning think we can play in the universe?

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.