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.
You breathe out 16.3% oxygen.
Yes the same amount will leave you as you take in on average but when you breathe out there will be more CO2 and less oxygen as your body uses Oxygen for it's metabolic functioning and releases CO2 in it's place. So yes same amount out as in but in a different form.
no it is completely different are bodies cant breathe that only pure oxygen(o2). although fish can breathe the dissolved oxygen in water
people breath in 21% oxygen 79% nitrogen 0.9% nion ano 0.1 other gases
They breathe.
Free, because we breathe it daily
20%
About 16% of the air you expel is oxygen.
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
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!!!!!!!
Particles in the air contain oxygen, which enable us to breathe.
Typically, the air you breathe is comprised of 18 to 21 percent Oxygen.
because without oxygen you cant breathe.
Plants "breathe" constantly. Not just daily.