Study

Rivers and coasts

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  • a low flat area of land where a river divides into smaller rivers and flows into the sea
    delta
  • strong walls built across a river to stop the water
    dams
  • the wide parts of rivers where they go into the sea
    estuaries
  • areas of soft, wet land
    marshes
  • the regular rise and fall in the level of the sea
    tide
  • a layer of mud, sand, stones, etc. that forms at the bottom of a river
    sediment
  • the place where river starts
    source
  • lakes that contain sea water
    lagoons