Question

fill in the blank to complete the statement about the geologic time scale. on the geologic time scale, scientists use the terms era and period to describe lengths of time pre - cambrian time.

Explanation:

On the geologic time - scale, the terms era and period are used to describe time intervals after Precambrian time. Precambrian time is a vast expanse of Earth's history before the Phanerozoic Eon, and after it, the geologic time is divided into eras and periods.

Answer:

after