There is 78% nitrogen and 21% oxogen. It is very simple really.
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The atmosphere is composed of approximately 78% nitrogen and 21% oxygen, with the remaining 1% made up of various other gases. This composition has remained relatively stable over time.
Two common elements that can be found in the air are nitrogen, which makes up about 78% of the air, and oxygen, which makes up about 21% of the air.
The air is made up, mostly, of oxygen and nitrogen.. Air is 78 % nitrogen, 21 % oxygen, about 1 % argon, and a whole raft of other gases present in even smaller amounts..
The two main gases that make up air are nitrogen and oxygen. Nitrogen makes up about 78% of the air, while oxygen makes up about 21%.
Nitrogen and oxygen are both elements. Nitrogen is a nonmetallic element with the symbol N and atomic number 7, while oxygen is also a nonmetallic element with the symbol O and atomic number 8.
There is more nitrogen in dry air compared to oxygen. Dry air consists of approximately 78% nitrogen and 21% oxygen, with trace amounts of other gases.