The Carbon Cycle
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The carbon cycle moves carbon between the atmosphere, living organisms, oceans, and geologic reservoirs through processes including photosynthesis, respiration, and long-term sedimentary burial.
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Photosynthesis draws atmospheric carbon dioxide into plant biomass, while respiration and decomposition return it to the atmosphere.
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The carbon cycle includes slow geologic reservoirs, such as buried sediment, alongside the fast biological exchange most examples emphasize.