Given a scientific passage and an answer, generate a question for the given answer.

Passage: Decomposition of dead organisms and organic wastes releases carbon back to the atmosphere, soil, or ocean. Answer: carbon

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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What does the decomposition of dead organisms and organic waste release into the atmosphere, soil, or ocean?