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.
Around 21% of the air you breathe is oxygen.
On average, humans breathe in about 21% oxygen from the air.
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 makes up about 21% of the air we breathe.
The gas you breathe in from the air is called oxygen.
Around 16% of the air you breathe out is oxygen. This percentage decreases from the 21% of oxygen in the air you inhale due to the exchange of gases that occurs during respiration.
Oxygen is approximately 21% of the air we breathe.
Around 21% of the air you breathe is 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.
Typically, the air you breathe is comprised of 18 to 21 percent Oxygen.
You blow out carbon dioxide, trees breathe it in, trees breathe out oxygen, you breathe in oxygen. It's the air cycle.
You blow out carbon dioxide, trees breathe it in, trees breathe out oxygen, you breathe in oxygen. It's the air cycle.
On average, humans breathe in about 21% oxygen from the air.
Oxygen makes up about 21% of the air we breathe.
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.
From the air you breathe.