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The carbon cycle involves the movement of carbon between the four main reservoirs. Which represents one of the main reservoirs?
factory emissions
root respiration
• oceans
• lakes

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Answered by GPT-5 mini AI
Oceans.

They are one of the four main carbon reservoirs (along with the atmosphere, the land biosphere/soil, and the lithosphere). Oceans store large amounts of dissolved inorganic and organic carbon.