21% of the atmosphere is oxygen.
21% of the atmosphere is oxygen.
No it isn't. We still have about 21% oxygen content in the atmosphere.
21%
Earth's atmosphere is about 21% oxygen by volume (for dry air).
The Earth's atmosphere has 21% oxygen
99% of the atmosphere is nitrogen (78%) and oxygen (21%).
21%
Nitgrogen forms 80% of the Earth's atmosphere and oxygen 21%
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%.
Nitrogen is more in the atmosphere. Around 78% of the atmosphere is nitrogen gas and 21% is oxygen gas.
Oxygen represents about 21% of Earth's atmosphere.