Which type of transverse sand dunes are found in western Rajasthan?

Correct option is A

In western Rajasthan, the primary types of transverse sand dunes are Barchan and Sief dunes. Barchan dunes are crescent-shaped, with the horns pointing downwind, and are typically found in arid regions where the wind direction is consistent. Sief dunes are larger and more elongated than Barchans and form in areas with strong, consistent wind patterns. These dunes are prominent in the Thar Desert region of Rajasthan, which is known for its vast sand dunes.
Information Booster: · Barchan: Crescent-shaped dunes formed by unidirectional winds in dry regions, common in deserts.
· Sief: Elongated sand dunes, larger than Barchans, formed in regions with a constant wind direction.
· Parabolic: These dunes are U-shaped and are usually found in coastal regions, not in western Rajasthan.
· Vegetated Linear: These are rare and found in regions where vegetation is present to stabilize the sand, which is not typical of the arid regions of Rajasthan.
Additional Knowledge: · Barchan: A key feature of desert landscapes, Barchans can move across the desert over time due to wind erosion.
· Sief: These dunes indicate strong and stable winds that shape the landscape over long periods.
· Parabolic: Typically found in areas with a lot of vegetation or along the coasts, forming a U-shape due to bi-directional winds.
· Vegetated Linear: These dunes are found in areas with strong wind and vegetation, which stabilizes the dune.