What do we exhale when breathing?

..... Asked by shamelessness 4 months ago, 5 answers.

sorry thats so retarted ha

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Answered by jello on Jul 02, 2008, 05:05PM
| 830 answers.

to let out the minerals we dont need such as CO2

Answered by ivbeenhurt on Jul 02, 2008, 05:05PM
| 99 answers.

carbon deoxide Co2

Answered by shamelessness on Jul 02, 2008, 05:07PM
| 11 answers.

thanks!
*dies of embarrasment*

Answered by ty on Jul 02, 2008, 05:25PM
| 6741 answers.
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actually contrary to popular belief, when you inhale air, not all of the oxygen is used up and turned into carbondioxide (ok this is rough numbers)
Air from the atmosphere
N2= 78%
O2=21%
CO2=0.04%
other gases = rest of it

Exhaled air
N2=75%
O2=14%
CO2=5%

Answered by brit389 on Jul 02, 2008, 07:56PM
| 90 answers.

carbon dioxide co2

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