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GS Geography Physical Geography of World
Q.

Winds blowing constantly in one direction in rocky deserts form:
Explanation:

ANS. (C) 
In regions of rocky deserts, wind abrasion excavates the bands of softer rocks into long, narrow corridors, separating the steep-sided over-hanging ridges of hard rocks, called yardangs. Instead of lying in horizontal strata upon one another, the hard and soft rocks of yardangs are vertical bands and are aligned in the direction of the prevailing winds.

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