Attrition, rocks carried by the river collide. They break up into smaller, smoother pieces., Abrasion, rocks carried by the river scrape along the bed and banks. This loosens material, which is then carried away by the water in the river., Solution, Soluble particles are dissolved by the river., Hydraulic action, the force of the river against the banks. Air becomes compressed within cracks and crevices, which weakens the banks., Erosion, When material is removed from the riverbed and banks., Transportation, When material is moved further downstream., Suspension, smaller material that is light enough to be continuously carried along., Traction, large rocks are rolled along the riverbed at times of high energy, eg when the river level is high., Saltation, the water picks up rocks and pebbles. They are too heavy to be carried far and so they appear to bounce along the riverbed., Deposition, When material is dropped by the river..

River Processes Keywords

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