Air is the mixture of gasses that make up the Earth's atmosphere. Oxygen is about 20% of that mixture.
The Earth's atmosphere is composed of roughly 21% oxygen. This level of oxygen in the air is ideal for human respiratory needs.
Around 16% of the air you breathe out is oxygen. This percentage decreases from the 21% of oxygen in the air you inhale due to the exchange of gases that occurs during respiration.
Oxygen is approximately 21% of the air we breathe.
The oxygen content of air is approximately 21%. Nitrogen is the largest component of air as it takes up 78% of the atmosphere.
The air is primarily composed of nitrogen and oxygen. About 78% Nitrogen, Oxygen 21%.
they both have oxygen
Oxygen changes temperature and it also changes temperature. Example: Humidity causes air to be more moist.
Oxygen is in the air.
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
Uh...sorry to break it to you, but oxygen is air.
About 21% of inspired air is oxygen.
Room air is about 21% oxygen.
Approximately 21% of the air we breath is oxygen.