"the filth seemed to erase identities, transforming the men into identical copies of a single soldier, which was exactly how [he] had been trained to treat them, as interchangeable units of command. it was difficult sometimes, but he tried to avoid that sort of thinking. he had no military ambitions. he preferred to view his men not as units but as human beings."

Define production possibility curve

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.

Name that largest artificial lake built in the 11th century