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OpenStudy (anonymous):
In the carbon-oxygen cycle, carbon dioxide is used for _____ and oxygen is used for _____. respiration, photosynthesis ozone, respiration photosynthesis, respiration evaporation, condensation
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OpenStudy (anonymous):
@Secret-Ninja
OpenStudy (anonymous):
@oOKawaiiOo
OpenStudy (ookawaiioo):
photosynthesis, respiration
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