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The Earth's atmosphere is about 20.5% oxygen. This amounts to about 1 quintillion (1x1018) kg.
Wiki User
∙ 8y ago
Wiki User
∙ 11y agoThe NOAA Earth System Research Laboratory places the figure at 20.95% Oxygen by volume (21% if you're rounding up).
Wiki User
∙ 9y agoOxygen only takes up about 20.95% of the air in the atmosphere. The rest of the air is taken up by 78.09% of nitrogen, 0.93% of argon, and 0.039% of carbon dioxide.
Wiki User
∙ 12y agoThe Earth's atmosphere is 77% nitrogen, 21% oxygen, with traces of argon, carbon dioxide and water.
Wiki User
∙ 8y agoThe atmosphere is about 19.5 % oxygen.
Wiki User
∙ 11y ago21%
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If Earths biosphere were younger we would have oxygen in the atmosphere?
Earths atmosphere dose have oxygen in it, without it we would all be dead we require oxygen to breathe.
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.
What are the substances that the earths atmosphere contains?
oxygen
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.
What essentials for life are found in earths atmosphere?
The Earths atmosphere protects the earth from meteors and it tgives us 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
If Earths biosphere were younger we would have oxygen in the atmosphere?
Earths atmosphere dose have oxygen in it, without it we would all be dead we require oxygen to breathe.
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.
Is most of the earths atmosphere covered with oxygen?
no
What percent of earths atmosphere is oxygen?
97%
What are the substances that the earths atmosphere contains?
oxygen
Was there oxygen in the early earths atmosphere?
yes
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.
What essentials for life are found in earths atmosphere?
The Earths atmosphere protects the earth from meteors and it tgives us oxygen
What makes up Earth's air?
Nitrogen makes up 78% of the earths atmosphere Oxygen makes up 21% of the earths atmosphere
The primative earths atmosphere did not contain?
Free oxygen
