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kari74 [83]
3 years ago
10

What determines the divisions of eras and periods on the geologic time scale?

Geography
1 answer:
aivan3 [116]3 years ago
3 0


Each era is subdivided into a number of periods. The periods of the Cenozoic, the present era, are further divided into epochs. Many divisions of the geologic time scale are based on events in Earth's geologic history. Some divisions are based entirely on the fossil record.
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HELP ME OUT PLEASE!!!
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The Presidential Election map showed that The deep political divisions in the United States created a fractured electorate.

<h3 /><h3>What was shown by the 1860 election map?</h3>

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Find out more on the election of 1860 at brainly.com/question/579219

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