The composition of standard dry atmosphere is:
- nitrogen 78,084 %
- oxygen 20,946 %
- argon 0,934 %
- carbon dioxide 0,039 %
and extremely low concentrations of He, Ne, CO, Kr, Xe, Rn, CH4, O3.
Oxygen is approximately 21% of the air we breathe.
One of the most common gases in the Earth's atmosphere is nitrogen, which makes up about 78% of the air we breathe.
No it isn't. It is Nitrogen, which makes up 70% of the air we breathe.
The primary gas found in air is nitrogen, which makes up about 78% of the Earth's atmosphere. Oxygen is the second most abundant gas, comprising about 21% of the air we breathe.
Often it is water vapour, which can vary from 0 to 4 %. Otherwise it is argon, at nearly 1%
This gas is argon - 0,9340 %.
Oxygen it helps the trees breathe too.
Oxygen is the second most common/abundant gas in the air that we breathe. Nitrogen is the most abundant gas in the air we breathe. The composition of air is often treated as 79 mole or volume percent N2 and 21 mole or volume percent O2.
The gas you breathe in from the air is called oxygen.
The common term for what we breathe in is air.
Oxygen is the second most common/abundant gas in the air that we breathe. Nitrogen is the most abundant gas in the air we breathe. The composition of air is often treated as 79 mole or volume percent N2 and 21 mole or volume percent O2.
This gas is oxygen - 20,946 %.
Oxygen is approximately 21% of the air we breathe.
In dry air it is argon, but under typical conditions, it is water vapor.
One of the most common gases in the Earth's atmosphere is nitrogen, which makes up about 78% of the air we breathe.
Argon, with a concentration of 0,934 % in the dried air.
Nitrogen which makes up about 78 percent of the atmosphere.