rivers rivers 0.0 / 5 ? GeographyWater and riversGCSEAQA Created by: laura.martin12345Created on: 14-04-16 12:09 Hydraulic action The force of the water on the bed and banks of the river removes material. 1 of 8 Abbrasion Material carried by the river rubs against the bed and banks and wears them away. 2 of 8 Attrition The load that is carried by the river bumps together and wears down into smaller smoother pieces. 3 of 8 Solution some rock minerals dissolved in the river water (e.g calcium carbonate in limestone). 4 of 8 Traction Large boulders roll along the river bed 5 of 8 Saltation smaller pebbles are bounced along the river bed, picked up and the dropped as the flow of the river changes. 6 of 8 Suspension Finer sand and silt particles are carried along in the flow, giving the river a brown appearence. 7 of 8 Solution Minerals, such as limestone and chalk, are dissolved in the water and carried along in the flow, although they cannot be seen. 8 of 8
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