Oxygen is obviously produced through photosynthesis in green plants. But what about areas like the Sahara Desert, the middle of the ocean, or Antartica which don't have any green plants? Could they possibly become devoid of oxygen and un...
http://wiki.answers.com/Q/Where_does_oxygen_come_from
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Science question: Where does oxygen come from in winter when the trees have no leaves? as far as i understand it. 50 is produced by the phytoplankton ... Answers.com > Wiki Answers > Categories > Science > Where does oxygen come from in winter when the trees have no leaves?
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wiki.answers.com/Q/Where_does_oxygen_come_from_in_winte...
wiki.answers.com/Q/Where_does_oxygen_come_from_in_winter_when_the_trees_have_no_leaves
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Brief and Straightforward Guide: Where Does Atmospheric Oxygen Come From? ... I'm confused. Does oxygen still come from plants when it is needed for burning coal?
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www.wisegeek.com/where-does-atmospheric-oxygen-come-fro...
www.wisegeek.com/where-does-atmospheric-oxygen-come-from.htm
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Oxygen makes up about 21% or 210,000 ppm of the atmosphere. Atmospheric carbon dioxide is now at about 365 ppm, and Salisbury and Ross (1985) state that only about 10% of the carbon dioxide in the atmosphere is used each year in photosynthesis.
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www.madsci.org/posts/archives/sep2001/1001605307.Es.r.h...
www.madsci.org/posts/archives/sep2001/1001605307.Es.r.html
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MadSci Network: Earth Sciences ... Re: Does most of our oxygen come from plants, or phytoplankton? Date: Thu Dec 3 11:19:46 1998; Posted By: Karen Culver-Rymsza, Biological Oceanographer; Area of science: Earth Sciences; ID: 911532152.Es...
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www.madsci.org/posts/archives/dec98/912707010.Es.r.html
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CB Van Niel 1930 noted that in sulfur bacteria: ... Oxygen evolved comes from water ... Back to first slide...
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www.nsci.plu.edu/~mivey/1612000/powerpoint/Photosynthes...
www.nsci.plu.edu/~mivey/1612000/powerpoint/Photosynthesis/tsld011.htm
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First Previous Next Last Index Home Text...
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www.nsci.plu.edu/~mivey/1612000/powerpoint/Photosynthes...
www.nsci.plu.edu/~mivey/1612000/powerpoint/Photosynthesis/sld011.htm
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A new model offers plausible scenarios for how oxygen came to dominate Earth's atmosphere 2.4 billion years ago, and why it took at least 300 million years after bacterial photosynthesis started producing oxygen in large ...
http://www.sciencedaily.com/releases/2005/08/0508111049...
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Where does oxygen come from? Free oxygen is created in the oceans, but it is created by phytoplankton, microscopic single-celled algae. Millions of tons of phytoplankton... ... Free oxygen is created in the oceans, but it is created by phytoplankton, microscopic single-celled algae. Millions of tons of phytoplankton...
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www.answerbag.com/q_view/34075
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