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WatA 1.3-1.4
Water Underground & Wetland Environments
| Term | Definition |
|---|---|
| permeable | Characteristic of a material that contains connected air spaces, or pores, that water can seep through easily. |
| impermeable | A characteristic of materials, such as clay and granite, through which water does not easily pass. |
| unsaturated zone | The layer of rocks and soil above the water table in which the pores contain air as well as water. |
| saturated zone | The area of permeable rock or soil in which the cracks and pores are totally filled with water. |
| water table | The top of the saturated zone, or depth to the groundwater under Earth’s surface. |
| aquifer | An underground layer of rock or sediment that holds water. |
| artesian well | A well in which water rises because of pressure within the aquifer. |
| wetland | A land area that is covered with a shallow layer of water during some or all of the year. |