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Calder River

20 Marks for identifying 4 places where river erosion is taking place. Can you see where erosion is taking place. Then determine what sort from the following....

The four main forms of river erosion

  • Hydraulic action - the force of the river against the banks can cause air to be trapped in cracks and crevices. The pressure weakens the banks and gradually wears it away.
  • Abrasion - rocks carried along by the river wear down the river bed and banks.
  • Attrition - rocks being carried by the river smash together and break into smaller, smoother and rounder particles.
  • Solution - soluble particles are dissolved into the river
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