The Earth's atmosphere. Almost 22% of the remaining gas is oxygen, put a very small portion is made up of other gases, called trace gases.
Air is 78% nitrogen
.78 or 78%
Nitrogen.
78%
The answer is.................AIR
78% in air.
The Earth has an atmosphere of 78% nitrogen (and 21% oxygen).
dry air contains 78% nitrogen.
Air contains about 78% nitrogen by volume.
87% of nitrogen is in the air
Air
air