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The first major source of oxygen gas was _____. volcanic outgassing meteorite impacts cyanobacteria banded iron formations
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Asked 4/2/2014 11:10:57 AM
Updated 6/16/2014 10:20:41 PM
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User: The first major source of oxygen gas was _____. volcanic outgassing meteorite impacts cyanobacteria banded iron formations

Weegy: The first major source of oxygen gas was VOLCANIC OUT-GASSING.
Frankie17851|Points 3200|

Question
Asked 4/2/2014 11:10:57 AM
Updated 6/16/2014 10:20:41 PM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by jeifunk [6/16/2014 10:20:41 PM]
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The first major source of oxygen gas was CYANOBACTERIA.
Added 6/16/2014 10:20:40 PM
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