what are sandunes
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Posted by Priyanshu Gaur 9 years ago
- 2 answers
Naveen Sharma 9 years 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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Shruti Dadhwal 9 years 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.
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