Because Nitrogen makes plants grow and they provide a continuous supply of oxygen!
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
It is made out of nitrogen and oxygen
Earth's atmosphere is made up of 78% nitrogen and 21% oxygen. The other 1% is other gases.
Oxygen and nitrogen
nitrogen
Gases such as nitrogen oxygen and hydrogen I think
The Earth's atmosphere is made up water vapor, nitrogen, oxygen, argon, and carbon dioxide.
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.
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%).
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.
the atmosphere is made of carbon dioxide and other gases e.g. oxygen and carbon dioxide