Explanation:

 The Rajasthan desert is predominantly characterized by three lansforms-
The sandy stretch of Thar with sand dunes
Plains
Hills
Hillocks, salty marshlands, gravel, shifting sand dunes, fragments of rocks, scrub vegetation and rare oasis are scattered over the vast sandy expanse of the Thar Desert in Rajasthan. Luni is the only river that meanders through the desert and reaches the Arabian Sea through the Rann of Kutch.