Q.

Which is the crest shaped sand dune with cusps of the crescent pointing downward?

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a

Khadar

b

Barchan

c

Bhagar

d

All of the above 

answer is B.

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Detailed Solution

Barchans is the crest-formed dune with cusps of the crescent pointing downward. Barchans are mainly crescent-shaped dunes susceptible to shifting when exposed to a strong wind from one specific direction. They are most frequently connected with areas where a single dominating wind direction influences a finite amount of sand and are most frequently observed in sandy desert environments. Barchans are one of the numerous varieties of dunes, and while they are frequently seen in India, barchans may also be found in desert regions all over the world.
 
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