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The Water Cycle Aka Hydrologic Cycle
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Facts Water Cycle= Hydrologic Cycle
Primary agent responsible for moving and transporting elements critical for life- distributes nutrients Moderates climate Cycle purifies water
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Processes Evaporation- liquid to gas
Transpiration- water loss form plants (Evapotranspiration= evaporation+ transpiration) Condensation- gas to liquid Precipitation (rain, sleet, hail, fog) Infiltration- absorption into the ground Percolation- downward flow of water into rock in aquifers Runnoff- water moves across land surfaces (rivers, streams and creeks) to lakes or ocean
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Human Impact Deforestation- less transpiration
Paving surfaces or buildings cover the ground and reduce infiltration and percolation---increases runoff and flooding Water diversion--dams
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Watersheds All the land in a given landscape that drains into a particular stream, river, lake or wetland
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