Abrasion - Rocks and stones within the river crash against the river bed and banks and wear it away. within the river crash against the river bed and banks and wear it away., Hydraulic action - The sheer power of the water smashes against the river banks wearing them away., Solution (E) - When the water dissolves certain types of rocks, e.g. Limestone., Attrition - When rocks that the river is carrying crash against each other and wear away., Traction - Large, heavy pebbles are rolled along the river bed. This is most common near the source of a river, as here the load is larger., Saltation - Pebbles are bounced along the river bed, most commonly near the source., Suspension - Lighter sediment is suspended (carried) within the water, most commonly near the mouth of the river., Solution (T) - The transport of dissolved chemicals. , Freeze-thaw weathering - Water gets in to cracks in rocks freeze, expand and break the rock., Chemical weathering - Acid rainwater causes the rock to break down., Biological weathering - Tree roots grow in cracks in rocks causing the rock to break.,

River processes!

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