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Oxygen composes approximately what percent of the air we breathe?
Oxygen makes up about 21% of the air we breathe.
What percent does oxygen make up in our atmosphere?
There is approximately 21 % oxygen in our air.
What makes up 21 percent of the air by volume?
Oxygen makes up 21 percent of the air by volume.
What is the percent of oxygen in dry air?
The percent of oxygen in dry air is approximately 21%.
Oxygen composes approximately what percentage of air we breathe?
21%
Oxygen composes approximately what percentage of the air we breath?
Oxygen makes up approximately 21% of the air we breathe.
What makes up 21 percent of the air?
oxygen! There is 21 percent oxygen in inspired ( the stuff you breath in) air and 13 percent in expired(the stuff you breath out)
What percent of oxygen on the earth?
Oxygen makes up approximately 21% of the Earth's atmosphere.
What percent of the air we breath is oxygen?
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.
The air you breathe in is in the?
mainly nitrogen (approximately 78 percent) and oxygen (approximately 21 percent) there are approximately 1 percent other gases, which includes carbon dioxide at 0.04 percent (aprrox.)
How much percent does oxygen have by air?
Oxygen makes up about 21% of the Earth's atmosphere. Nitrogen is the most abundant component, making up approximately 78%.
What is the percentage composition of nitrogen in the air?
78 percent Air is mostly gas The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.
