Explanation
The percentage of oxygen in the air is about 20.95%. The air is made up of many gases, including oxygen, nitrogen, argon, and carbon dioxide *** Nitrogen Nitrogen is the most abundant gas in the air, making up about 78% of it. Argon Argon is the third most abundant gas in the air, making up about 0.93% of it. Carbon dioxide Carbon dioxide is present in trace amounts in the air, making up about 0.04% of it.
