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Do animals breath out carbon dioxide?
Question Date: 2013-09-20
Answer 1:

Yes, so animals and humans basically have similar cycles. The way we breathe may me different but what we breathe and what we exhale is basically the same. So the oxygen cycle goes like this: plants create oxygen using photosynthesis, animals and humans breathe this oxygen, and then they exhale carbon dioxide. This is why we need more plants; they give us clean and healthy air to breathe. Pollution creates more carbon dioxide and we should be breathing in oxygen, not carbon dioxide.

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