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Home Q & A Board Science-Related Homework Help Physics Astronomy
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hermiz hermiz
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7 years ago
The most severe mass extinction during the past 500 million years occurred at the end of which geological period?
A) Devonian
B) Triassic
C) Permian
D) Cretaceous
Textbook 
Life in the Universe

Life in the Universe


Edition: 4th
Authors:
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Life in the Universe, 4/E (Bennett, Shostak)
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DonskoyDonskoy
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7 years ago
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hermiz Author
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7 years ago
Helped a lot
husne
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Yesterday
Thanks
kh540941
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2 hours ago
Brilliant ツ
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