Rooftop harvesting is declining in western Rajasthan because of water from the perennial:
ANarmada Main Canal
BIndira Gandhi Canal
CBhakra Nangal Canal
DSardar Sarovar Canal
Answer & Solution
Correct answer: B. Indira Gandhi Canal
1. Plenty of water now arrives by canal.
2. It is the Indira Gandhi Canal.
3. Some houses keep tankas for the taste.
_Source: syllabus Contemporary India II, Chapter 3, Water Resources._
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