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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%.
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∙ 12y ago
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How much oxygen is present in air?
21% Oxygen, 78% Nitrogen, 1% other gasses in out atmosphere.
What component of the earths atmosphere exists as a result of photosynthesis?
Photosynthesis converts carbon dioxide into oxygen. Therefore, much of the oxygen in our atmosphere is present due to photosynthesis.
How much percent of the air in the earth's atmosphere is gasses?
Air by definition is a mixture of gases. Within this mixture, 78% is nitrogen and 20% is oxygen. The remainder is argon and trace gases.
How much oxygen does the ocean have?
45 percent of the earths oxygen is produced by our oceans
What planet has a nitrogen- oxygen atmosphere?
Earths atmosphere is rich in Oxygen, some 21% of the air is Oxygen. There is oxygen on other planets, but the percentage comes nowhere close to this. The percentage of Oxygen in earths atmosphere is thought to have been much higher in the past, before animals were about, but after the arrival of plants.
How much percent of oxygen gas is in the atmosphere?
20.946% by volum.
How much oxygen is present in an oxygen cylinder then as a percent?
The atmosphere consists of about 20%, Nitrogen being the main component at over 70%
How much oxygen is present in air?
21% Oxygen, 78% Nitrogen, 1% other gasses in out atmosphere.
What component of the earths atmosphere exists as a result of photosynthesis?
Photosynthesis converts carbon dioxide into oxygen. Therefore, much of the oxygen in our atmosphere is present due to photosynthesis.
How would life be different if there was 80 percent oxygen and 20 percent nitrogen?
The atmosphere would be much more volatile.
How much of mars atmosphere is made up of oxygen?
A tiny fraction of a percent. Mars has an extremely thin atmosphere, and what it does have is mostly Carbon Dioxide.
How much of the air oxygen?
21% of the atmosphere is oxygen.
What is the main component of Mars' atmosphere?
Mars has an atmosphere, though it is different than our atmosphere here on Earth. The atmosphere of Mars is thin, cold, and dry and contains much less oxygen than the atmosphere of Earth. The oxygen content of the Martian atmosphere is only 0.13 percent, compared with 21 percent in Earth's atmosphere. Carbon dioxide makes up 95.3 percent of the gas in the atmosphere of Mars. It also contains nitrogen and argon and very small amounts of water and methane. Additionally, the atmospheric pressure on Mars is only about 1/100 that of Earth's!
What takes up 1 percent of the earths atmasphere?
Assorted gases such as argon, the rest of the atmosphere is pretty much just Oxygen and Nitrogen.
What percent of oxygen to much to support life?
The percent of oxygen is 27. this increases the natural percent of 21 by 6 percent causing living organisms to have too much 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 earths atmosphere is made up of nitrogen and oxygen?
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
