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Biology, 08.10.2019 12:10 kidyugey

Which of the following best defines the carbon cycle?
a. cycling of carbon that is essential for life and climate processes
b. cycling of carbon that involves changes between the solid, liquid, and gas phases
c. cycling of carbon dioxide that is essential for life and climate processes
d. cycling of carbon dioxide that involves changes between solid, liquid, and gas phases

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Which of the following best defines the carbon cycle?
a. cycling of carbon that is essential...
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