Erosion

geo

Erosion

the wearing away of rock and soil found along the river bed and bank

hydraulic action

the force of water against the bank causing air to be trapped in cracks. The pressure weakens banks

Abrasion

big boulders roll along the river bed and wear it down. Causes vertical and lateral erosion int he upper course

Attrition

Rocks carried by the river bang against each other. they break into smaller and rounder and smoother particles

Solution

when soluble particles are in the action be being dissolved by the river. Limestone is common