THE WEARING AWAY OF RIVERS

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  • EROSION
    • HYDRAULIC ACTION
      • flowing water washing away any loose material on beds/banks
    • Abrasion
      • stones carried in the river washed into beds {wearing them away}
    • Solution/corrosion
      • slightly acidic river water dissolves rocks made from limestone
    • Attrition
      • colliding stones > broken down; smaller and rounder
  • Solution/corrosion
    • slightly acidic river water dissolves rocks made from limestone

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