RAS question
Didwana Lake is a salt lake located in which district?
Correct answer: (A) Nagaur.
Didwana Lake is a salt lake at Didwana in Nagaur district, Rajasthan.
Explanation
Didwana Lake is associated with Didwana town in Nagaur district of Rajasthan. The Rajasthan Secondary Towns Development Sector Project: Didwana Sewerage Subproject (Nagaur District) Initial Environmental Examination describes Didwana Salt Lake as one of the notable saline lakes of the Thar Desert, alongside Sambhar, Kuchaman, Lunkaransar and Pachbhadra. The Didwana playa is shallow and ephemeral, lies in the semi-arid western Rajasthan landscape, and supports commercial salt production. Didwana Lake therefore belongs to Nagaur district. Didwana is counted with Sambhar and Pachpadra among major salt-producing lakes, and sodium sulphate is also extracted here.
Why the other options are wrong
- (B) Jodhpur is wrong because Didwana town lies in Nagaur district, not in Jodhpur district.
- (C) Barmer is wrong because Pachpadra is the salt lake associated with Barmer, while Didwana is associated with Nagaur.
- (D) Jaipur is wrong because Sambhar is the salt-lake association near Jaipur, whereas Didwana lies in Nagaur district.
Concept
Rajasthan physical geography links salt lakes to districts. RAS location-based facts often connect resources, desert geomorphology and regional economy in one compact fact.