The most appropriate answer is b. Epoch. An epoch is a unit of geologic time that is smaller than a period. The largest divisions are called eras. Eras are then divided into periods. Examples of epochs include the Holocene, Eocene and Miocene. We are presently in the Holocene Epoch.
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emilyros0002
The smallest unit of geologic time is epoch.
SelmaHanington942
The most appropriate answer is b. Epoch. An epoch is a unit of geologic time that is smaller than a period. The largest divisions are called eras. Eras are then divided into periods. Examples of epochs include the Holocene, Eocene and Miocene. We are presently in the Holocene Epoch.