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Moving water has potential to be incredibly strong. Moving water causes erosion along streams, at beaches, and underground
Streams erode land and transport sediment
The erosion produced by a stream depends on the stream's energy
This energy is usually greatest in steep, mountainous areas where young streams flow rapidly downhill
A meander is a broad, C-shaped curve in a stream
Waves crashing onto shore erode loose sand, gravel, and rock along coastlines
A longshore current is a current that flows parallel to the shoreline
This current moves sediment and continually changes the size and shape of beaches
Water that flows underground also can erode rock
Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum
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Deposition by a stream can occur anywhere along its path where the water's speed decreases
A delta is a large deposit of sediment that forms where a stream enters a large body of water
Much of the sand on most ocean beaches was originally deposited by rivers
Longshore currents transport the sand along ocean coasts
Eventually, sand is deposited where currents are slower and have less energy
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Damage caused by water erosion can be affected by the ways people use land
Shoreline Groins
A floodplain is a wide, flat area next to a river
Floods supply mineral-rich soil that is ideal for farming
One way to decrease flooding on a floodplain is to build a levee
Strong or long-lasting winds can significantly change the land
Abrasion is the grinding away of rock or other surfaces as particles carried by wind, water, or ice scrape against them
Valley of Fire in Nevada
A dune is a pile of windblown sand
Loess is a crumbly, windblown deposit of silt and clay
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