Approximately 78 of the air we breathe is nitrogen.
The atmosphere is 78.08% Nitrogen78%70%
The air we breathe is composed of approximately 78% nitrogen. This nitrogen is vital for many biological processes, but is generally inert and does not react with other components in the air.
Air is about 78% nitrogen pretty much everywhere on Earth.
Air contains about 78% nitrogen by volume.
Nitrogen makes up about 78% of the Earth's atmosphere.
70/78 aiR
On average, humans breathe out about 3.5% of nitrogen in exhaled air, which is roughly 78% of the air we breathe in. This nitrogen is not utilized by the body and is simply exhaled back into the atmosphere.
Oxygen keeps animals alive, Nitrogen is not much use.
Nitrogen doesn't contain air, but the air contains Nitrogen.
Our air is about 79% Nitrogen.
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..