Q1. [1] medium exam-ready
Match the following traditional water harvesting structures with their regions and choose the correct option:
Column I (Structure) — Column II (Region)
a. Khadins — i. Bengal flood plains
b. Inundation channels — ii. Meghalaya
c. Bamboo drip irrigation — iii. Jaisalmer
d. Rooftop tankas — iv. Bikaner, Phalodi, Barmer
(A) a-iii, b-i, c-ii, d-iv
(B) a-i, b-iii, c-iv, d-ii
(C) a-ii, b-iv, c-i, d-iii
(D) a-iii, b-iv, c-ii, d-i
- A a-iii, b-i, c-ii, d-iv
- B a-i, b-iii, c-iv, d-ii
- C a-ii, b-iv, c-i, d-iii
- D a-iii, b-iv, c-ii, d-i
Generated by claude-sonnet-4-6 · 2026-06-26 13:30 · grounding rag
Model Answer
The correct answer is (A) a-iii, b-i, c-ii, d-iv.
- Khadins → Jaisalmer (iii); Inundation channels → Bengal flood plains (i); Bamboo drip irrigation → Meghalaya (ii); Rooftop tankas → Bikaner, Phalodi, Barmer (iv).
Explanation
All four matches are directly stated in the chapter: khadins are mentioned for Jaisalmer; inundation channels for Bengal flood plains; bamboo drip irrigation for Meghalaya; and underground tankas (rooftop rainwater harvesting) for Bikaner, Phalodi and Barmer. Students must remember these region-structure pairs as they are frequently tested in MCQs and short-answer questions.