Question

the typical crescent shaped sand dunes is called seif/bucknan/hamada/caravans​

Answer 1

Answer:

Barchans. .......

Explanation:

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Answer 2

ANSWER:-

The typically crescent shaped sand dunes is called barchans.

A barchan or barkhan dune is a crescent-shaped dune. The term was introduced in 1881 by Russian naturalist Alexander von Middendorf, for crescent-shaped sand dunes in Turkestan and other inland desert regions. Barchans face the wind, appearing convex and are produced by wind action predominantly from one direction. :)