what has raised the %of co2 in exhaled air ?
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Explanation:
In addition, the blood contains some carbon dioxide (a waste product) that is transferred to the air in the lungs, which is then exhaled. The result is that the exhaled air contains less oxygen and more carbon dioxide than the inhaled air.
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CO² Exhaled air - 4%
CO² Inheld air - 0.4%
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