21 %
The percentage of oxygen in the atmosphere is approximately 21%. Nitrogen makes up 78% and the last 2% percent is a mixture of various different gases, mostly argon.
Earth has the largest percentage of oxygen in its atmosphere compared to other planets in our solar system. Oxygen makes up about 21% of Earth's atmosphere, which is essential for supporting life as we know it.
There is no atmospheric oxygen on the moon. There is oxygen bound up in the regolith, most notably in the mineral ilmenite. The quantities are as yet unknown
Hydrogen makes up about 0.000055% of Earth's atmosphere. It is much less abundant compared to other gases like nitrogen and oxygen.
The percentage of oxygen in the Earth's atmosphere by mass is approximately 21.
About 21% of the Earth's atmosphere is composed of oxygen.
About 21 of the Earth's atmosphere is made up of oxygen.
28%
Oxygen makes up about 21% of Earth's atmosphere.
The atmosphere is composed of approximately 21% oxygen.
The percentage of oxygen in the atmosphere is 20.75%. The atmosphere has many other elements that we breathe in besides oxygen. Oxygen needs to be present for life on earth.
Earth's atmosphere is about 21% oxygen by volume (for dry air).
21 %
roughly 21 percent.
The approximate percentage by volume of oxygen in Earth's atmosphere at location 2 is around 21%.
No, only when it is released into the atmosphere at the ambient pressure.