if air is a mixture of gases how we breathe only oxygen
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we inhale all other gases in air but when it enters lungs there the bronchioles takes oxygen only and it will be absorbed by haemoglobin in blood. other gases are exhaled out.
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we donot breathe only oxygen there are also other gases like carbondioxide when we breathe
so it will be a wrong saying tht we only breathe oxygen
so it will be a wrong saying tht we only breathe oxygen
this is proved that we breathe only oxygen
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