What did lincoln mean when he said "government of the people, by the people, and for the people?

Why do all market economies have taxes to support armed forces police forces public schools and at least some form of public transportation?

Calculate the iq of a 20 year old who has the mental age of 25

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.