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Biology, 28.09.2019 02:30 vickydaiberg

Assuming the carbon cycle is a closed system, which of the following statements is true? a. the sun absorbs energy from the carbon cycle. b. when all the fossil fuels are used up, there will be no more carbon. c. mass and energy are conserved in the carbon cycle. d. as population sizes increase, more carbon is produced.

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Assuming the carbon cycle is a closed system, which of the following statements is true? a. the sun...
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