Answer:
Air is made up of 9 things and they are nitrogen, oxygen, argon, carbon dioxide, neon, helium, krypton, hydrogen, and xenon.
Step-by-step explanation:
Air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Plus air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.
I hope this helps!