Terms : Hide Images
| 5786862567 | Aquifer | A permeable layer of rock and sediment that contains groundwater. |  | 0 |
| 5786863787 | Unconfined aquifer | Made of porous rock covered by soil out of which water can easily flow. |  | 1 |
| 5786865416 | Confined aquifer | Surrounded by a layer of impermeable rock or clay that impedes water flow. |  | 2 |
| 5786866198 | Water Table | The uppermost level at which the water in a given area saturates the rock and soil. |  | 3 |
| 5786871769 | Groundwater recharge | When water percolates through the soil and works its way into an aquifer. |  | 4 |
| 5786873602 | Cone of depression | An area lacking groundwater due to rapid withdrawal by a well. |  | 5 |
| 5786875195 | Saltwater intrusion | Infiltration of saltwater in an area where groundwater pressure has been reduced due to extensive drilling of wells. |  | 6 |
| 5786878849 | floodplain | The land adjacent to a river. |  | 7 |
| 5786879899 | Dike | A structure built to prevent ocean water from flooding adjacent land. |  | 8 |
| 5786881508 | Reservoir | The water body created by a damming a river or stream. |  | 9 |
| 5786887430 | Fish ladder | A stair like structure that allows migrating fish to get around a dam. |  | 10 |
| 5786888813 | Aqueduct | A canal or ditch used to carry water from one location to another. |  | 11 |
| 5786890075 | Desalination | The process of removing salt from salt water. |  | 12 |
| 5786891583 | Distillation | A process of desalination in which water is boiled and the resulting steam is captured and condensed to yield pure water. |  | 13 |
| 5786894596 | Reverse osmosis | A process of desalination in which water is forced through a thin semipermeable membrane at high pressure. |  | 14 |
| 5786897247 | Hydroponic agriculture | Cultivation of plants in greenhouse conditions by immersing roots in nutrient rich solution. |  | 15 |
