Question

hey guys i have a question , as we know there r a lot of or almost all gases are present in atmosphere but we take only oxygen so is thrmere any system in our nose or any other place so that we take only oxgygen not other like nitrogen?

Answer 1

No.., We take many gases inside..But only Oxygen is needed fr our body, So it gets utilised. and other gases goes out..

(I think)

Answer 2

hiiii friend
here is your answer
the reason behind only inhaling oxygen is like this⬇⬇⬇
we not only breath oxygen but we breath a no. of gases in mixed form but only oxygen is absorbed byur body is because of the presence of a red coloured pigment called ''haemoglobin" in our blood which absorbs only oxygen and transport it to different cell for cellular respiration and after this respiration carbon dioxide is formed which exhale by our body.....


glad to help you
hope it helps
thank you.