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About 16% of the air you expel is oxygen.

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13y ago

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Which gas is 20 percent of the air you breathe?

Oxygen is approximately 21% of the air we breathe.


What percentage of the air you breathe oxygen?

Around 21% of the air you breathe is oxygen.


How much percent of oxgyen you breathe?

Typically, the air you breathe is comprised of 18 to 21 percent Oxygen.


Why do the air you breathe out contain no oxygen?

The air you breathe out contains less oxygen because your body extracts oxygen from the air when you breathe in and uses it during cellular respiration to produce energy. As a result, the air you breathe out has a higher concentration of carbon dioxide and less oxygen.


How much oxygen is in the air we breathe?

About 21% of the air we breathe is oxygen. The other major components are nitrogen (about 78%) and trace gases like argon, carbon dioxide, and others.


Where do you get air from?

You blow out carbon dioxide, trees breathe it in, trees breathe out oxygen, you breathe in oxygen. It's the air cycle.


Where do you get your air from?

You blow out carbon dioxide, trees breathe it in, trees breathe out oxygen, you breathe in oxygen. It's the air cycle.


How many percent of oxygen did you breathe?

On average, humans breathe in about 21% oxygen from the air.


How much oxygen and carbon dioxide is the air that we breathe out?

The air we breathe out contains about 16% oxygen and 4% carbon dioxide. The rest is mainly nitrogen and trace amounts of other gases.


Oxygen composes approximately what percent of the air we breathe?

Oxygen makes up about 21% of the air we breathe.


What is the difference between the air we breathe in and the air we breathe out?

The difference - is in the proportion of the gasses present. The air we breathe in contains about 20% Oxygen. What we breathe out has about 16% oxygen and high levels of carbon dioxide.


What air do you breathe in?

Oxygen.