Not much, I dont know a figure, but most of the air you breathe is nitrogen gas. can represented by the ratio 1:3, 1 being oxygen, 3 being other gaseous substances that make up the atmosphere.
On average, humans breathe in about 21% oxygen from the air.
We breathe in oxygen, which is in the form of O2 molecules.
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.
The air we breathe out contains about 16% oxygen and 4% carbon dioxide. The rest is mainly nitrogen and trace amounts of other gases.
Around 21% of the air you breathe is oxygen.
Free, because we breathe it daily
20%
Humans breathe in oxygen and breathe out carbon dioxide. Trees "breathe" out oxygen.
cricket consume 50%oxygen Daily
Try living without Oxygen (to breathe), nitrogen (to dilte the oxygen so that you don't burn up when you breathe), dihydrogen oxide (water that you drink), etc.
The same amount you wil just breathe in more often
Typically, the air you breathe is comprised of 18 to 21 percent Oxygen.
You breathe in oxygen.
Particles in the air contain oxygen, which enable us to breathe.
because without oxygen you cant breathe.
Grass produces about half of the oxygen we breathe in a day.
Yes you do. See we breathe in oxygen and we breathe out carbon dioxide. Plants are the opposite. They breathe in carbon dioxide and breathe out oxygen. We give them carbon dioxide and they give us oxygen!! That's how we breathe!!!!!!!