How many pounds of force must a guardrails top rail be able to withstand

What were some of the things done to the colonists by king george iii?

Name three things the framers of the constitution did to keep the federal government or any part of it from becoming too powerful.

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.