Question

what are sand dunes?

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Answer 1

Answer:

A dune is a landform, and is a large mass of wind-blown sand. Dunes are most common in deserted environments, such as the Sahara, and also near beaches. An area with dunes is called a dune system. In physical geography, a dune is a hill of loose sand built by aeolian processes or the flow of water.

Answer 2

Answer:

DUNE

A dune is a land from, and is a large mass of wind blown sand . Dunes are most common in deserted environment, such as the Sahara , and also near beaches. An area with dunes is called a Dune System .

SAND DUNES

When the wind blows, it lifts and transport sand from one place to another . When the wind stop blowing, the sand falls and gets deposited as low hill-like structures called SAND DUNES.