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Today, the Earth's atmosphere is composed of about 21% oxygen by volume. This level has been relatively stable over time due to the balance of oxygen production by photosynthesis and consumption by respiration and other processes.

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1y ago

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How did the earths atmosphere change composition to become todays nitrogen and oxygen atmosphere?

your question is... How did the Earth`s atmosphere change composotion to became today`s nitrogen and oxygen atmosphere? Answer: it happend with the help of solar untraviolet (uv) radiation,the very thing what we worry about now for its cancer-causing ability


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


What is todays current level of oxygen in air?

Oxygen levels in the atmosphere are steady at around 20%. The other main component of the air is nitrogen, with a small amount of other gases, including carbon dioxide (CO2).


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.