Erosion : The gradual wearing down of something by wind, water, and other natural forces, , Weathering: The breakdown of solid materials into very small particles by water, air, and other natural events, , Deposition: The buildup of land by the settlement of sediment and soil in a new location, , Sediment: Sand or small pieces of rock broken down by weathering and deposited on the land or at the bottom of a body of water, , Glacier: A large, slow-moving, long-lasting accumulation of snow and ice that develops on land, , Landslide: The sudden downhill movement of a huge mass of rock, soil, and mud, , Delta: A large flat area of land at the mouth of a river, , Flood: Caused by heavy rains or rapid melting of large amounts of snow; the soil can’t absorb the water fast enough and streams cannot carry the water away fast enough, ,

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