| A | B |
|---|
| Irrigation | the watering of land through pipes, ditches, or canals |
| Industrialization | the process in which manufacturing based or machine power becomes widespread in an area |
| Hydroelectricty | electricity produced by harnessing the power of running water |
| Hydrologic Cycle | the circulation of water among parts of the hydrosphere |
| Transpiration | the process by which plants give off water vapr through their leaves |
| Evapotranspiration | a measure of the total loss of water from the land to the atmosphere through evaporation and transpiration |
| Headwaters | the first and smallest streams to form from the runn off of precipitation flowing down the slopes of hills and mountains |
| Tributary | a stream or river that flows into a larger stream or river |
| Watershed | an area of land drained by a river and its tributaries |
| Estuary | a semi closed coastal body of water where sea water and fresh water mix |
| Wetlands | productive land areas that are flooded for at least part of the year |
| Groundwater | fresh water found beneath Earth's surface in tiny spaces between soil and rock grains |
| Water Table | the top of an underground zone that is saturated with ground water |
| Aquifer | a rock layer through which ground water flows easily |
| Continental Shelf | the part of the sea floor that slopes gently down from the continents; the most shallow part of the ocean |
