Geography Rivers - Key Terms 0.0 / 5 ? GeographyRivers and fluvial processesASNone Created by: LucyBonnyCreated on: 08-05-16 18:25 Drainage Basin The catchment area from which a river obtains its water 1 of 16 Watershed The boundary that seperates one drainage basin from another 2 of 16 Infiltration Transfer of water into the soil from the surface 3 of 16 Surface Run-Off Water running over the surface of the ground (overload flow) 4 of 16 Evapotranspiration Moisture lost from a vegetated land surface 5 of 16 Percolation Transfer of water downwards within the soil 6 of 16 Saturation The point at which soil and rocks can hold no more water 7 of 16 Weathering The disintergration of rocks in situ (on the spot) 8 of 16 Erosion The removal of material by an agent such as water, ice or wind 9 of 16 Load The total amount of sediment carried by a river 10 of 16 Abrasion Material carried by a river rubs against the banks and river bed 11 of 16 Attrition Rocks carried by the river collide with each other, break up and become smoother 12 of 16 Hydraulic Action The force of water pounding against the bed and banks causes material to break away 13 of 16 Solution Chemical reaction causing rocks to break away and dissolve 14 of 16 Mass Movement Any large scale movement of material not directly involving any agent of erosion 15 of 16 Hydraluic Radius Measure of a river's efficiency 16 of 16
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