Match the following:
| 1. Precipitation | a. The process by which water collects as droplets on a cold surface when humid air is in contact with it. |
| 2. Condensation | b. The process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and pressure. |
| 3. Transpiration | c. Any kind of water that is falling to the Earth from the clouds. |