07-27-2018, 03:20 AM
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Senior Member
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Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
Thanks: 3,506
Thanked 136,542 Times in 22,784 Posts
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At least half of Earth's Oxygen comes from the ocean, not trees. Tiny aquatic plants called phytoplankton live near the surface of the water, drift with the currents, and generally do what plants do - make oxygen as a byproduct of taking in sunlight and carbon dioxide.
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