Water Resources
NCERT India People and Economy, Class 12, Chapter 4 assesses water resources and their careful use. It estimates surface flows and replenishable groundwater, maps rainfall extremes from Cherrapunji to Rajasthan, and explains wells, tube wells, tanks, and canals. It reviews multipurpose dams such as Bhakra Nangal and Hirakud for power, irrigation, and flood control alongside their costs. It promotes rainwater harvesting, watershed care, drip irrigation, and pricing that curbs waste.
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