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OpenStudy (anonymous):
Ancient cyanobacteria released ______, which assisted in creating the atmosphere as we know it today. A. lead B. ore C. hydrogen D. oxygen Phlease Help Me!:)
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OpenStudy (aaronq):
Cyanobacteria are photosynthetic organisms, like plants, they produce sugars and \(O_2\) from carbon dioxide and water (..and energy from sunlight).
OpenStudy (anonymous):
So Its D???
OpenStudy (anonymous):
ayecutieepiee message me
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