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4 votes
Eras are divisions in geologic time divided into periods and epochs. any time periods in the past. divisions of time based on cultural standards, as in "Stone Age." the time frames during which a certain fossil species existed.

asked
User Kuffs
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7.9k points

1 Answer

4 votes

Please add the full excercise, what is the point of it?

answered
User Sepans
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8.2k points
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