Question

The Oligocene epoch is

Measured in light years
O A radiochemical time period
O An archaeological time period
O A geologic time period

Answer 1

The Oligocene epoch is a geologic time period that occurred approximately 33.9 to 23 million years ago. It is characterized by a global cooling trend, the spread of grasslands, and the diversification of mammals.

Step-by-step explanation:

The Oligocene epoch is a geologic time period in the Paleogene period of geological time. It occurred approximately 33.9 to 23 million years ago and is characterized by a global cooling trend, the spread of grasslands, and the diversification of mammals. It followed the Eocene epoch and preceded the Miocene epoch. During the Oligocene, the Earth's climate transitioned from a greenhouse to a cooler, more icehouse-like state.

Learn more about Oligocene epoch