Correct option is B
Ans. (b)
In Western Rajasthan, 41.50% of the sandy plain is free from sand dunes. The region, known for its arid and semi-arid conditions, forms part of the Thar Desert. While the landscape is dominated by sand dunes, a significant portion of the area consists of interdunal plains, rocky outcrops, and agriculturally usable land, which are devoid of sand dunes.
Information Booster
1. Western Sandy Plains: These plains cover about 61% of Rajasthan's total area, primarily within the Thar Desert region.
2. Sand Dunes Coverage: The remaining 58.50% of the area in the sandy plains is covered by active or stabilized sand dunes.
3. Sand Dune-Free Area: Includes plains, rocky areas, and water bodies that are more conducive to human habitation and agriculture.
4. Districts in the Region: Jaisalmer, Barmer, Bikaner, Jodhpur, and Nagaur are part of this sandy plain area.
5. Significance: The sand dune-free regions are critical for farming, grazing, and settlements, supporting human and livestock populations in this arid zone.
6. Climate Influence: The sand-free areas experience less wind erosion compared to regions covered by active dunes.
Key Points:
· Western Rajasthan: The Thar Desert region, dominated by arid landscapes and sand dunes, is home to unique biodiversity and resilient communities.
· Dune Stabilization: Efforts like afforestation and sand-binding grass plantations help stabilize dunes.
· Economic Significance: The sand-free areas play an important role in agriculture and water resource management.