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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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1 vote
In the carbon-oxygen cycle, carbon dioxide is used for _____ and oxygen is used for _____.

respiration, photosynthesis
ozone, respiration
photosynthesis, respiration
evaporation, condensation

User Evgenii Bazhanov
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2 Answers

3 votes
The correct answer from the choices presented above is the one from the third option. In the carbon-oxygen cycle, carbon dioxide is used for photosynthesis especially for plants and oxygen is used for respiration by humans and animals.
User Vicky T
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6 votes
a.respiration, photosynthesis
User Flauntster
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8.1k points
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