Because that's how much there is, even if there were more oxygen in air than nitrogen this would be unhealthy!
The percentage of nitrogen in pure, dry ,standard air is 78,084 % (by volume).
It has 23 percentage of nitrogen gases. Also it can be a fun and secret place to have sex, with .
The question is totally misguided. Nitrogen is the most abundant gas in the atmosphere, representing around 78%. Its crustal abundance is not quite that high because it is not a very reactive element.
Nitrogen makes up 75% of the air followed by carbon dioxide and oxygen
It's when air in a region is very moist (humidity is high)
the concentraction of nitrogen in the air is very high
About 78% of air is Nitrogen.
The percentage of nitrogen in pure, dry ,standard air is 78,084 % (by volume).
78% of air breathed is nitrogen
Atmospheric air contains approximately 78% nitrogen.
It has 23 percentage of nitrogen gases. Also it can be a fun and secret place to have sex, with .
78% of the atmosphere is nitrogen
Nitrogen is the gas that makes up the largest percentage of the Earth's atmosphere, composing about 78% of the air we breathe.
Nitrogen makes up about 78% of Earth's atmosphere, so when you breathe air, approximately 78% of it is nitrogen.
Approximately 78% of the Earth's atmosphere is composed of nitrogen.
percentage of nitrogen in the air
78% of the air we breathe is nitrogen. 21% is oxygen, and the other 1% is a mix of other gasses.