Sand dune types MCQ — 1 Practice Questions with Answers

Explanation

Seif dunes, also called longitudinal dunes, form as long ridges broadly parallel to the prevailing wind direction, so Seif is the correct answer. Parabolic dunes are U-shaped dunes usually controlled by vegetation and winds acting on partly anchored sand. Barchan dunes are crescent-shaped and form under fairly constant wind with limited sand supply. Transverse dunes develop roughly at right angles to the prevailing wind direction, which is the opposite alignment from the one asked in the question.