Geography • Physical GeographyMedium
Which of the following describes a 'Barchan' dune in desert geomorphology?
A. A symmetrical ridge of sand formed parallel to the prevailing wind direction
B. A crescent-shaped sand dune with tips pointing downwind, formed in areas with unidirectional winds and limited sand supply✓ Correct Answer
C. A massive elongated dune formed perpendicular to strong multidirectional winds
D. A circular depression formed by the deflation of sand down to the water table
💡 Solution & Explanation
Barchan dunes are crescent-shaped landforms with tips pointing downwind, formed under conditions of unidirectional winds and limited sand availability. Symmetrical ridges parallel to winds form longitudinal dunes, whereas transverse dunes form perpendicular to winds.
More Geography Physical Geography questions
- The point on the Earth's surface directly above the focus or hypocenter of an earthquake is called the:
- In oceanography, what is the primary cause of daily tides experienced on Earth?
- What is the primary mineral composition of limestone rocks that makes them highly susceptible to chemical…
- Which of the following volcanic forms represents a wide, shallow, and low-relief crater formed by a single…
- Which of the following biogeochemical cycles features a sedimentary phase where elements circulate through…