Question

How are yardangs formed in arid regions?

• A. By rocks lifted up from the surface that moves with the winds.
• B. By the softer rocks surrounding a resistant igneous rock.
• C. By winds carrying large volumes of sand depositing them at different places
• D. By undercutting of vertically aligned rocks

Answer 1

The correct option is D By undercutting of vertically aligned rocks

In arid regions, layers of hard and soft rocks are aligned vertically. As winds blow, the soft rocks get eroded, while the hard rock formations remain. Some of the abrasion undercuts parts of the rocks, and these formations are called yardangs.