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RAS question

Which agro-climatic zone is called the 'Sub-Humid Southern Plain'?

Correct answer: (C) Zone covering Udaipur, Bhilwara.

The Sub-Humid Southern Plain is Rajasthan's agro-climatic Zone IV-A, covering Bhilwara, Rajsamand and parts of Chittorgarh and Udaipur.

  1. (A)

    Zone covering Banswara, Dungarpur

  2. (B)

    Zone covering Jaipur, Tonk

  3. (C)

    Zone covering Udaipur, Bhilwara

  4. (D)

    Zone covering Kota, Bundi

Explanation

The answer is the zone covering Udaipur and Bhilwara because the Government of Rajasthan's Agri Value Chain paper for Udaipur Division identifies two agro-climatic zones in the region: Sub-Humid Southern Plain and Aravalli Hills, marked as IV-A, and Humid Southern Plain, marked as IV-B. Zone IV-A covers Bhilwara, Rajsamand and parts of Chittorgarh and Udaipur. Bhilwara and part of Udaipur therefore fall in the Sub-Humid Southern Plain, making option C correct. Banswara and Dungarpur fall in the Humid Southern Plain, so they should not be confused with Zone IV-A.

Why the other options are wrong

  • (A) Banswara and Dungarpur are placed in the Humid Southern Plain, not in the Sub-Humid Southern Plain and Aravalli Hills Zone IV-A.
  • (B) Jaipur and Tonk are outside Zone IV-A, which covers Bhilwara, Rajsamand and parts of Chittorgarh and Udaipur.
  • (D) Kota and Bundi are not part of the Sub-Humid Southern Plain Zone IV-A district mapping.

Concept

This tests Rajasthan's agro-climatic regionalisation, a standard Geography of Rajasthan area because RAS often asks district-to-zone matching. The trap is between adjacent southern zones with similar names.

Source

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