Q: Is vapor different from an aerosol? ¶
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 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.
Q: Is vapor responsible for the familiar processes of cloud formation and condensation? ¶