Pls help it says something about air being air being a mixture.

Yes, air is a mixture because it contains two and more compounds including other elements in obvious proportion.

Explanation:

A mixture contains two or more compounds.

The compounds present are 1) Water Vapour, 2) Other gases.

The elements present are nitrogen and oxygen.

c, liquids evaporate, creating a gas

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.