Approximately how much of Earth's history occurred during the Precambrian super-eon A. 30%
B. 50%
C. 75%
D. 90%
Approximately 90% of Earth's history occurred during the Precambrian super-eon.
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Asked 6/23/2016 11:09:11 AM
Updated 6/23/2016 11:40:42 AM
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