Question

What is the shape the Barchans?

• A. Crescent
• B. Square
• C. Rectangular
• D. Circular

Answer 1

Answer: (A)

• Barchan, also spelled Barkhan, crescent-shaped sand dune produced by the action of wind predominantly from one direction.
  
• Barchans face the wind, appearing convex and are produced by wind action predominantly from one direction. They are a very common landform in sandy deserts all over the world and are arc-shaped, markedly asymmetrical in cross-section, with a gentle slope facing toward the wind sand ridge, comprising well-sorted sand.