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Erosion and Deposition Agent: Moving Water Moving water is the major agent of erosion that has shaped Earth’s land surface (p. 73) Runoff is water that moves across Earth’s surface (p. 73) If you think about it, it is part of the rock cycle! http://www.dkimages.com/discover/DKIMAGES/Discover/Home/Science/Earth-Sciences/Geology/Rocks/Rock-Cycle/Diagrams/Diagrams-6.html Amount of runoff There are 5 main factors that affect how much runoff there is in an area. 1. The amount of rain 2. The amount of plants and vegetation 3. The type of soil 5. How people use the land: parking lot or park large (streams! RunoffRivers: = erosion usually) Types of water channels Gully: a large groove Streams: a channel • Rills:where the running water creates water is little grooves in the soil flowing downward Erosion by Rivers Under- Groundwater Erosion Caves Stalactites and Stalagmites Chemical Weathering
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