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Home Q & A Board Science-Related Homework Help Physics Astronomy
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lulalu lulalu
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6 years ago
The figure above shows the geological times scale. Humans have existed for approximately ________ of the Earth's history.
A) 50%      B) 0.1 %      C) 1 %      D) 10 %
Textbook 
The Essential Cosmic Perspective

The Essential Cosmic Perspective


Edition: 7th
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a_sabu2a_sabu2
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6 years ago
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lulalu Author
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6 years ago
This helped my grade so much Perfect
jamiebonf99
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Yesterday
Good timing, thanks!
larrybrads
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2 hours ago
this is exactly what I needed
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