Air typically contains about 21% oxygen by volume.
The percent of oxygen in dry air is approximately 21%.
On average, humans breathe in about 21% oxygen from the air.
Oxygen makes up 21 percent of the air by volume.
Everyday items that contain oxygen include the air we breathe, water (H2O), hydrogen peroxide (H2O2), and many chemical compounds such as oxides and organic molecules that contain oxygen atoms.
Roughly 21% of the air we breathe is oxygen. Nitrogen makes up about 78% of the air, with the remaining 1% composed of various other gases.
No.
The percent of oxygen in dry air is approximately 21%.
Air particles contain oxygen.
Air contain 78,084 % nitrogen, 20,946 % oxygen, 0,9340 argon, 0,039445 carbon dioxide, etc; air without gases is ... vacuum.
On average, humans breathe in about 21% oxygen from the air.
Pure standard air contain nitrogen, oxygen, noble gases, carbon dioxide, water; the true, normal air contain many other impurities.
Oxygen makes up 21 percent of the air by volume.
No - out atmosphere is made up of approximately 78% Nitrogen, 21% Oxygen and 1% other gasses.
oxygen
What we breathe is air, and oxygen is just 20% of the air. Oxygen does not contain water, it is an element and it contains only itself. However, air does contain some water vapor.
Approximately 21% of Earth's atmosphere is composed of oxygen.
oxygen! There is 21 percent oxygen in inspired ( the stuff you breath in) air and 13 percent in expired(the stuff you breath out)