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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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Wrogue Wrogue
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Posts: 4833
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10 years ago
Concerning oxygen, which of the following is FALSE?
A) It was scarce in Earth's early atmosphere.
B) It helped produce the first life on Earth.
C) Most life cannot function without oxygen.
D) Most oxygen has a biological origin.
E) Photosynthesis produces oxygen.
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GeoExpGeoExp
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10 years ago
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Wrogue Author
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#2
10 years ago
Your assistance has been above and beyond my expectations! So glad to have joined this forum. Thanks, and will mark as this thread officially solved Smiling Face with Open Mouth
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#3
10 years ago
Always nice to know I've helped.
Good luck with the rest of them.

- GeoExp
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