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Virat

Paddy cultivation in Punjab is unsustainable because it consumes excessive groundwater through tube-well irrigation. Continuous extraction has caused the water table to decline by more than a metre annually, depleting natural reserves. Such overuse threatens future water availability and weakens ...

Virat

Correct option is (b) Tamil Nadu. Tamil Nadu introduced mandatory rooftop rainwater harvesting in 2001 to address severe water scarcity. It requires new buildings to install systems to collect and store rainwater, helping recharge groundwater and reduce dependency on municipal ...