Answer:
Nitrogen
Explanation:
Air is mostly gas
It's a mixture of different gases. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.
Answer: nitrogen
Explanation: The air we breath is made up of 78 percent nitrogen and 21 percent oxygen.
