21%
The earths atmosphere is made up of 78% nitrogen and 21% 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
No, oxygen makes up about 21% of Earth's atmosphere. Nitrogen is actually the most abundant gas, making up about 78% of the atmosphere.
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.
There is quite a lot of oxygen on the moon, just not in the form of a gas. It is tied up in the rocks as metal oxides and other minerals.
Oxygen makes up about 21% of Earth's atmosphere.
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
21% Oxygen, 78% Nitrogen, 1% other gasses in out atmosphere.
Oxygen makes up about 21% of the Earth's atmosphere.
Because too much oxygen is harmful to the environment.
No, animals do not take up most of the oxygen on Earth. The majority of Earth's oxygen comes from photosynthesis by plants, algae, and cyanobacteria. These organisms release oxygen into the atmosphere as a byproduct of their metabolic processes.
Yes, oxygen makes up 20.9% of the atmosphere.
the percentage of oxygen in the atmosphere today is about 20.95%. Or... if you round it you get the most common answer of 21%.
Approximately 21% of Earth's atmosphere is made up of oxygen.
There is approximately 21 % oxygen in our air.
Oxygen makes up about 21% of Earth's atmosphere. This level has remained relatively stable over long periods of time, supporting life on our planet.