why the composition of inhaled and exhaled air is different
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Explanation:
When we exhale, the composition of the air remains almost the same as the air we inhale, only the percentage of carbon dioxide and oxygen changes. ... This is because our cells use oxygen from the inhaled air to release energy and give out carbon dioxide as a byproduct
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composition is different because during inhalation we inhale all the air present in atmosphere but during exhalation amount of O2 is less than CO2
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