. The seeming unity of JOIN and the SDS in the early 1960s eroded as Americans became divided over . * 5 points A) the Vietnam War B) Supreme Court civil rights rulings C) a severe recession D) domestic politics

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.