Oxygen Atoms
Oxygen makes up 21 percent of the air by volume.
hydrogen and oxygen
oxygen
Oxygen makes up roughly 20% of the atmosphere. Carbon Dioxide makes up 0.035% of the atmosphere.
No. Nitrogen makes up 78% of the air we breathe. Oxygen makes up 21%.
Yes, oxygen makes up 20.9% of the atmosphere.
Oxygen makes up roughly 21% of our atmosphere. Nitrogen is the dominant gas in our atmosphere (roughly 78%). The remaining 1% is comprised of carbon dioxide and other trace gases.
There is approximately 21 % oxygen in our air.
Oxygen makes up about 21% of Earth's atmosphere.
Nitrogen makes up 78% of the Earth's atmosphere. Oxygen makes up about 21%.
Oxygen makes up 95% of Earth's atmosphere.
hydrogen and oxygen