Around 21%, or 1.1 quadrillion (1.1e+15) tons.
The composition of a planet's atmosphere, including the presence of oxygen, is crucial for human respiration. Depending on the composition, a thick atmosphere might not contain enough oxygen for human survival, making it impossible to breathe. Additionally, other gases or compounds in the atmosphere can be harmful or toxic to humans.
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
20.946% by volum.
The atmosphere is 79.9% oxygen.
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
The atmosphere contain different kind of gases and one these gases is oxygen.So your answer is yes.
Atmosphere contain 19 % oxygen.
Let's see. Our atmosphere contains oxygen. Oxygen tanks contain oxygen. Oh yeah water has oxygen too
Oxygen gas
Free oxygen
Yes, the atmosphere contains trace amounts of hydrogen gas, but it is primarily composed of nitrogen (78%) and oxygen (21%). Hydrogen gas is much less abundant in the atmosphere compared to nitrogen and oxygen.
The atmosphere of the Earth is a gas, not a liquid, and although it does contain oxygen, that is just one part of the atmosphere, which is mostly nitrogen.
Oxygen makes up about 21% of Earth's atmosphere by volume.
The composition of a planet's atmosphere, including the presence of oxygen, is crucial for human respiration. Depending on the composition, a thick atmosphere might not contain enough oxygen for human survival, making it impossible to breathe. Additionally, other gases or compounds in the atmosphere can be harmful or toxic to humans.
Obviously the Earth has an atmosphere, and the moon also has one, although it is weaker and does not contain oxygen.
Practically all foods contain oxygen; and the first is of course water. Also the Earth atmosphere contain approx. 20 % oxygen as a gas.
It is believed that the early Earth's atmosphere did not contain significant amounts of oxygen. Oxygen began to accumulate in the atmosphere around 2.4 billion years ago due to the emergence of photosynthetic organisms.