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12 Cards in this Set
- Front
- Back
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watershed |
large bodies of underground water |
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drainage divide |
a geographical barrier such as a ridge, mountain, or hill. This separates watersheds. |
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surface water |
water from precipitation that drains into a gully that flows into a stream. |
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groundwater |
water that collect in cracks and pores in underground soil and rock layers. |
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water table |
top of saturation zone, below which water fills all open spaces. |
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zone of aeration |
the upper portion of soil and rock that can be temporarily filled with water enters the ground, but then moves deeper. |
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saturation zone |
below the water table where all spaces not filled with sold material fill with water. |
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aquifer |
a layer of permeable rock that allows water to flow through |
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permeable rock |
allows water movement to flow through the material. It is the opposite of impermeable. |
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subsidence |
sunken land surface due to underlying compression of Earth material as a result of removal of groundwater. |
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point source pollution |
a single identifiable and localized source of water pollution such as wastewater discharge into a stream. |
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non-point source water pollution |
pollutants introduced into surface or ground water that are without a specific location or source, such as water flowing over a lawn that has been fertilized and then into a drain. |
