Explain how living plants and animals maintain the levels of oxygen and carbon dioxide in the atmosphere
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The process of photosynthesis in plantsreleases oxygen into the atmosphere. Respiration by plants and animals, as they use the energy stored in food, and the process of decomposition of dead organisms, releases carbon dioxide into the atmosphere. All three work together to maintain the carbon dioxide-oxygencycle.
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Through cellular respiration humans release carbon dioxide (CO2) into the atmosphere. This CO2 is used by plants during photosynthesis. During photosynthesis plants release oxygen (O2) into the atmosphere. The oxygen is used by animals in order to carry out cellular respiration.
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