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Because Nitrogen makes plants grow and they provide a continuous supply of oxygen!

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16y ago

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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


What is the atmosphere made of on planet earth?

It is made out of nitrogen and oxygen


What planet's atmosphere is made up of nitrogen with some oxygen?

Earth's atmosphere is made up of 78% nitrogen and 21% oxygen. The other 1% is other gases.


What two gases is earth's atmosphere made of?

Oxygen and nitrogen


What 99 percent of the atmosphere is made up of either oxygen or .?

nitrogen


What is the atmosphere of earth made from?

Gases such as nitrogen oxygen and hydrogen I think


What is Atmosphere What is it made of?

The Earth's atmosphere is made up water vapor, nitrogen, oxygen, argon, and carbon dioxide.


What is the ratio between the oxygen and nitrogen?

The ratio of oxygen to nitrogen in the Earth's atmosphere is approximately 1:4. There is about 21% oxygen and 78% nitrogen in the atmosphere, with the remaining 1% made up of other gases. This balance is important for supporting life on Earth.


What two elements is earth's atmosphere mostly made up of?

The atmosphere is the mixture of gas molecules and other materials surrounding the earth. It is made mostly of the gases nitrogen (78%), and oxygen (21%).


What is 99 percent of the atmosphere is made up of either oxygen or?

Nitrogen. Oxygen makes up approximately 21% of the Earth's atmosphere, while nitrogen makes up about 78%. Together, they account for the vast majority of the gases present in the atmosphere.


What is the gases in atmosphere of earth?

the atmosphere is made of carbon dioxide and other gases e.g. oxygen and carbon dioxide