How is the geologic time scale divided?

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asked Jan 25, 2021 67.0k views

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Angom · Answer 1 · 2021-01-30T11:16:47+0000

Answer: Geologic time is divided into units. Major changes in the earth's surface or climate and the extinction of species help to divide the time scale into smaller units.

Explanation: Rocks grouped within each unit contain a similar fossil record.

How is the geologic time scale divided?

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