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Oxygen makes up about 21% of the Earth's atmosphere by volume. This level has been relatively consistent for the past few million years and provides the necessary amount of oxygen for humans and many other organisms to survive.

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1y ago

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Related Questions

Is there oxygen on Mars' atmosphere?

Yes, there is oxygen in the atmosphere of Mars, but it is present in very low concentrations, about 0.13%. This is much lower compared to Earth's atmosphere, which is around 21% oxygen.


How much of the earths atmosphere is made up of nitrogen and oxygen?

The earths atmosphere is made up of 78% nitrogen and 21% oxygen


How much is the earth atmosphere is made up of nitrogen and oxygen?

The earths atmosphere is made up of 78% nitrogen and 21% oxygen


How much of the atmosphere of the is free of nitrogen?

32% the of the atmosphere is Argon, Oxygen and Other stuff


How much oxygen is present in air?

21% Oxygen, 78% Nitrogen, 1% other gasses in out atmosphere.


How much percent of oxygen gas is in the atmosphere?

20.946% by volum.


What produces much oxygen it changes the atmosphere?

Photosynthesis, which is the process by which plants and other organisms convert carbon dioxide and sunlight into oxygen and glucose, is responsible for producing much of the oxygen in Earth's atmosphere. This process is crucial in maintaining the balance of gases in the atmosphere and supporting life on our planet.


How much percent oxygen present in your atmosphere?

the percentage of oxygen in the atmosphere today is about 20.95%. Or... if you round it you get the most common answer of 21%.


How much oxygen in the air percentage?

Oxygen makes up about 21% of the Earth's atmosphere.


Why cant you have an atmosphere made up of pure oxygen?

Because too much oxygen is harmful to the environment.


How much percentage of oxygen are there in the atmosphere?

Close to 21%, near 20.95%.


What is the oxygen content of the atmosphere?

The atmosphere is 79.9% oxygen.