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groundwater
Water that seeps underground, saturating soil and rocks and supplying wells and aquifers.
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reclaimed wasterwater
Treated wastewater that can be used for beneficial purposes, such as irrigating certain plants.
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reservoir
A pond, lake, or basin, either natural or artificial, for the storage, regulation, and control of water.
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aquifer
A geologic formation that can hold enough water to provide a water supply for people's needs.
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surface water
Water that is on the earth's surface, such as lakes, rivers, and streams.
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desalination
The removal of salts from saline water to provide freshwater.
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condensation
The process of water vapor in the air turning into liquid water. Water drops on the outside of a cold glass of water are condensed water. Condensation is the opposite process of evaporation.
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evaporation
The process of liquid water become water vapor, including vaporization from water surfaces, land surfaces, and snow fields.
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evapotranspiration
The sum of evaporation and transpiration.
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hydrologic cycle
Another name for the water cycle.
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irrigation
The controlled application of water for agricultural purposes through manmade systems to supply water requirements not satisfied by rainfall.
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percolation
The movement of water through the openings in rock or soil.
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precipitation
Rain, snow, hail, sleet, dew, and frost.
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transpiration
Process by which water that is absorbed by plants, usually through the roots, is evaporated into the atmosphere from the plant surface, such as leaf pores.
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