Question

How to breathe in CO2 and give out oxygen? ‎

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Don't dare to spam :p ​

Answer 1

was your old username glitchkpopstan

Answer 2

when you inhale ( breathe in ), air enters your lungs and oxygen from the air move from your lungs to your blood. at the same time carbon dioxide moves from your blood to the lungs and is exhaled ( breathe out ). this process is called gas exchange and is essential to life