Barchan sand dunes?
General Knowledge / World Geography — Multiple-choice practice
بارخان ریت کے ٹیلے کس سے متعلق ہیں؟
- A. Are crescent-shaped
- B. None of these
- C. Form when there is an unlimited supply of new sand
- D. Are long ridges of sand
Correct answer
Are crescent-shaped
Explanation
Explanation Barchan dunes are crescent-shaped sand dunes formed in deserts. They develop where there is limited sand supply and one-direction wind . The “ horns ” of the dune point downwind (wind direction). They move slowly as wind pushes sand over them. Common in Sahara and other dry desert regions. Last verified on 02-05-2026
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