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what are sandunes

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what are sandunes

  • 2 answers

Shruti Dadhwal 7 years, 4 months ago

Sand dune is a hill of sand near an ocean or in a desert that is formed by the wind.It is a ridge of sand created by wind which is found in deserts or near lakes and oceans.

Naveen Sharma 7 years, 4 months ago

A sand  dune  is  a  mount,  hill  or  ridge  of  sand  that  lies  behind  the  part  of  the  beach  affected  by tides.  They  are  formed  over  many  years  when  windblown  sand  is  trapped  by  beach  grass  or  other stationary  objects.  Dune  grasses  anchor  the  dunes  with  their  roots,  holding  them  temporarily  in place,  while  their  leaves  trap  sand  promoting  dune  expansion.  Without  vegetation,  wind  and waves  regularly  change  the  form  and  location  of  dunes.  Dunes  are  not  permanent  structures.

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