air contains 21% Dash
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3
Answer:
oxygen bro
air contains 21 percent oxygen
plese mark as brainlist
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0
Answer:
Hey mate! here is your answer
Air contains 78%Nitrogen, 21% Oxygen and 1% of other gases like CO2 , CO , SO2 , SO4 , etc.
Hope it helps you DEAR ❤
Plz mark as Brainliest!
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