Which of the following describes an initiative?

In order to accurately determine absolute time, you need to know which of the following?

In 100,000 years, the rotation of earth will be slower by how many seconds?

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.