Attrition - The stones carried in the load bounce and rub off each other. (Smooth, small, soft rocks), Abrasion - Small stones carried by the river wear away at the banks and bed of the river., Solution - Rocks and soil are dissolved by acids in the water., Hydraulic Action - The force of the moving water wears away the banks and bed of the river., Traction (Rolling) - The large stones are rolled along the bed of the river, Saltation (Bouncing) - The smaller pebbles are bounced along the bed of the river., Suspension - Light material like sand and silt are carried along (floating) in the water., Source - The place where a river begins., Course - – The route the river takes to the sea, Tributary - – A small river that joins a larger river, Confluence - The point where the tributary joins the river, Mouth - The point where the river enters the sea, Estuary - The part of the mouth that is tidal, Basin - The area of land drained by a river, Watershed - The high ground separating one river basin from one another,

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