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You breathe in oxygen and use the oxygen to burn food in your body. That gives you the energy to do all your bodily functions, like move, digest, circulate blood, think, etc.
The food you burn is mostly in the form of glucose sugar. That has the formula C6H12O6. So when you burn one molecule of sugar in a cell, you give off 6 molecules of CO2 and six of water. That's what you breath out.
Yes, we breathe out CO2.....the amount we breath is small, compared to the amount we exhale..........So Yes...I Guess It Is Good To Sing 2 Your Plants......Even If Your A Horrible Singer
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