Understanding Our Natural World 0.0 / 5 ? Geographyour natural worldGCSECCEA Created by: orlaith123helpCreated on: 16-05-18 17:55 Watershed Ridge of highland which separates 2 drainage basins 1 of 9 Source Where the river begins (in the upper course) 2 of 9 Tributary Small river which joins onto main river 3 of 9 Confluence Where 2 rivers meet 4 of 9 Mouth Where the river ends and goes into the sea 5 of 9 Abrasion/Corrasion When pebbles scrape against the river bed 6 of 9 Attrition Load is eroded by colliding against eachother 7 of 9 Hydraulic Action Movement and force of water causes sediment to be eroded 8 of 9 Solution/Corrosion Erosion of limestone or chalk due to chemical reactions 9 of 9
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