| A | B |
|---|
| hydrosphere | the mass of water on a planet |
| groundwater | freshwater located underground |
| hydrologic cycle | interaction of water sources |
| transpiration | emission of water vapor from plants |
| condensation | water vapor turns to liquid water |
| precipitation | water falling from the atmosphere |
| distillation | a process of separation into individual components |
| residence time | the average time a water molecule stays in a given source |
| ocean | has the longest residence time for water |
| evaporation | liquid water turns to water vapor |
