Question : Mounds of sand formed by wind action are called:
Option 1: Cliffs
Option 2: Cirques
Option 3: Dunes
Option 4: Hamadas
Correct Answer: Dunes
Solution : The correct answer is Dunes.
Dunes are landforms which are composed of wind-driven sand. Dunes are formed when wind deposits the sand on top of each other until a mound starts to form.
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