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  • 4 years ago

A circular series of chemical reactions that uses carbon dioxide from the air and produces energy-rich sugars is known as A.the water cycle. B.the Calvin cycle. C.the nitrogen cycle. D.the carbon cycle.

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  1. anonymous
    • 4 years ago
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    B: the Calvin cycle It takes in carbon dioxide from the air in the carbon fixation stage and then makes glucose (at a slower rate than light reaction) The other 3 options are not really related to sugar.. so yea, the answer is B

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