Oxygen: A colorless, odorless reactive gas. The chemical element of atomic number 8 and the life-supporting component of the air. It makes up 20% of the earth's atmosphere.
Air: The invisible gaseous substance surrounding the earth. A mixture of mainly nitrogen and oxygen,
Oxygen is in the air.
No, there is 21% oxygen in air.
in our air is there mostly oxygen
No. Oxygen is an element that typically comes in the form of O2. Air is a mixture of gasses and Oxygen is just one of them. Air is about 21% oxygen and 78% nitrogen with another 1% being a variety of other gasses.
When photosynthiesis occures...it releases oxygen into the air
There is 21% of oxygen in the air.
Dyr air is about 21% oxygen.
21% of the air is oxygen
There is oxygen,air,and carbon dioxide
There is more oxygen in the air.
oxygen percentage in air is 20%
Oxygen and air are not sounds.