In your own words, describe in as much detail as possible, what is air made of.

nitrogen, oxygen, argon, carbon dioxide, neon, helium, krypton, hydrogen, and xenon. It does not include water vapor because the amount of vapor changes based on humidity and temperature.

Air is made up of 9 things and they are nitrogen, oxygen, argon, carbon dioxide, neon, helium, krypton, hydrogen, and xenon.

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!

c is the answer because when something is left after something evaporates that shows the chemical change.