Vapor FAQs:

Q: Is vapor different from an aerosol?

A: Yes.

Q: Is vapor in contact with a liquid or solid phase?

A: Yes, and the two phases will be in a state of equilibrium.

Q: Is vapor responsible for the familiar processes of cloud formation and condensation?

A: Yes.

Q: Is vapor found near the earth's surface?

A: Yes, and may condense into small liquid droplets and form meteorological phenomena, such as fog, mist, and haar.