Question

18: What is
the shape of
the
Barchans?
A Circular
B
Rectangular
C Crescent
D Square​

Answer 1

Answer:

Crescent

Explanation:

Barchans are crescent-shaped sand dunes forming in arid regions with unidirectional wind and limited sand supply.

Answer 2

Answer:

Barchans are convex facing the wind, with the horns of the crescent pointing downwind and marking the lateral advancement of the sand. These dunes are markedly asymmetrical in cross section, with a gentle slope facing toward the wind and a much steeper slope, known as the slip face, facing away from the wind.

OR,

Barchans are crescent-shaped sand dunes forming in arid regions with unidirectional wind and limited sand supply.

Explanation:

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