We dont, we breath nitrogen and oxygen...but only the oxygen gets used by our bodies.
The atmosphere of Europa is composed of only oxygen, which is unusual. It is a very tenuous atmosphere.
There is oxygen in the atmosphere of Saturn, but it is only a tiny fraction of the deep atmosphere, which is mostly hydrogen. It is not in a usable form as is oxygen on Earth.
Mars' atmosphere contains 0.13% oxygen. Over 95% of the atmosphere on Mars is carbon dioxide.
Yes. There is one planet with oxygen in its atmosphere: our home planet Earth.
The oxygen in Earth's atmosphere comes from photosynthesis, which is carried out by plants and algae. Earth is the only planet known to have life, which is the only way we know of that would cause a planet to have an oxygen-rich atmosphere. Oxygen can form from the chemical breakdown of water via sunlight, but only in trace amounts.
only if an atmosphere is created
21% of the atmosphere is oxygen.
The atmosphere is 79.9% oxygen.
Theoretically none. The Earth has an atmosphere comprised of mainly nitrogeon 78% and oxygen 21% and as far as we know it is the only planet.
42 percent oxygen intake is not dangerous.
It doesn't; Earth has many other gasses. Our atmosphere is mostly nitrogen; only about 21% is oxygen. It may be that you intended to ask, why does only Earth have free oxygen in its atmosphere, while other planets in the solar system don't. Free oxygen is produced by green plants (by a process called photosynthesis) and green plants grow only on Earth.
Earth is only one planet where gaseous oxygen is found. The Earth's atmosphere is about 21% Oxygen.