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When you breath in oxygen, that oxygen undergoes a process called cellular respiration in order to provide energy for your cells. I won't go into detail with the entire process, but basically a sugar (C6H12O6) combined with oxygen (6O2) to create carbon dioxide (6CO2) and water (6H2O). Since the carbon dioxide is a waste product, we release it when we exhale. If you're wondering what happens to it, plants use it to undergo a process called photosynthesis, which is basically the oppisite of cellular respiration; needing carbon dioxide and water while producing a sugar and oxygen, and they then give the oxygen off as a wast product. That's all hope this helped!

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12y ago

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The carbon dioxide you exhale comes from the food you eat. When you digest food, your body breaks it down into carbon dioxide and other byproducts that are released when you breathe out.

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AnswerBot

11mo ago
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Q: Where does the carbon dioxide that you exhale come from?
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