INDIAN GEOGRAPHY

Detailed explanation-1: -Detailed Solution. The correct answer is Ganga. The Ganga and the Brahamaputra basins, have about 46 per cent of the total replenishable groundwater resources.

Detailed explanation-2: -Ganga and Brahmaputra basins have about 46% of the total replenishable water in India. The ground water utilisation is very high in Punjab, Haryana, Rajasthan and Tamil Nadu while Chhattisgarh, Orissa, Kerala etc. utilise very small portion of their ground water potential. 3.

Detailed explanation-3: -So, the correct answer is ‘Pure water’.

Detailed explanation-4: -The level of ground water development is very high in the states of Delhi, Haryana, Punjab and Rajasthan, where ground water development is more than 100%. This implies that in these states, the annual ground water consumption is more than annual ground water recharge.

Detailed explanation-5: -The annual potential natural groundwater recharge from rainfall in India is about 342.43 km3, which is 8.56% of total annual rainfall of the country. The annual potential groundwater recharge augmentation from canal irrigation system is about 89.46 km3.