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The Work of Rivers (Common Features (Source (The place where the river…
The Work of Rivers
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How rivers erode
Hydraulic action is the force of moving water, which breaks fragments from the bed and the banks (sides) of the river. The material carried along by the river is called its load.
Abrasion is when the load hits against the bed and banks of the river and erodes them rapidly. Abrasion is the most powerful way in which rivers erode.
Attrition is when the stones carried in the load of the river are themselves worn down. Stones are smoothened, rounded and made smaller by the process of attrition
Solution is when chemicals in the water help to break down some rocks. Carbonic acid, for example, slowly dissolves limestone
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