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IB Geography: Ecosystems and Human Activity: Psammosere
 

IB Geography: Ecosystems and Human Activity: Psammosere

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    IB Geography: Ecosystems and Human Activity: Psammosere IB Geography: Ecosystems and Human Activity: Psammosere Presentation Transcript

    • Sand Dunes
      • Conditions for Dune Formation
      • A plentiful supply of sand.
      • A shallow offshore zone with gentle gradients, where large exposures of sand dry out at low tide.
      • An extensive backshore area where sand can accumulate.
      • Prevailing onshore winds.
      • The growth of vegetation, such as Sea Couch Grass.
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