Coasts

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  • Coasts
    • Coastal erosion
      • Corrosion
      • Corrasion
        • stones against cliff
      • Attrition
        • rocks at each other
      • Hydraulic action
    • Coastal weathering
      • Biological weathering
        • roots grow into cracks and animals burrow
      • Chemical weathering
        • acids corrode
      • Wetting and drying
        • weak rocks expand and contract in wet and dry weather
      • Freeze thaw
        • water in cracks freezes-expands-widens
    • Mass movement
      • destructive waves
      • movement of material down a slope due to gravity
      • Constructive waves
        • either swash or backwash is stronger
          • destructive waves
      • Longshore drift
        • swash and backwash diagonally move material along beach
    • Coastal management
      • hard engineering
        • beach replnishment
        • Salt marsh creation
        • Sand dune Regeneration
          • Untitled
      • Soft engineering
        • sea wall
        • groynes
        • Rip Rap

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