• Question: What is air exactly?

    Asked by 16leddyb to Alan, Damian, Emma, Liam, Luca on 19 Jun 2013.
    • Photo: Liam Bagley

      Liam Bagley answered on 19 Jun 2013:

      Air is actually just under 80% Nitrogen. The bit we need to survive, oxygen, is only about 20% of the air we breathe! So our bodies are pretty efficient at getting what it needs from the air we breathe!

    • Photo: Emma Ross

      Emma Ross answered on 19 Jun 2013:

      As Liam says, air is a mixture of different gases. Even though we need oxygen to survive, it only makes up little more than 20% of the air around us, about 0.03% is carbon dioxide, and the rest Nitrogen.

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