How does the mechanical energy of a ball that is staring to fall compare to its total energy just before it hits the floor

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.

Why do you think kush in nubia is not as well-known as egypt? ( me with my exit ticket)

Which are components pf a political party? why do we need political parties give reason.