Oxygen gas makes up around 21% of the Earth's atmosphere.
Oxygen makes up about 21% of the Earth's atmosphere. It is essential for respiration in animals and the combustion of fossil fuels.
0.03 = 3%
25%
As a percetage: 59.375%
Oxygen is in the air.
1/10 = 10%
DRIVETHROUGH
No, there is 21% oxygen in air.
in our air is there mostly oxygen
When photosynthiesis occures...it releases oxygen into the air
Dyr air is about 21% oxygen.
There is oxygen,air,and carbon dioxide