Five Facts are:
1. About 2.5% of total water is lost through evaporation.
2. India has 22- lakh tubewells; the maximum in the world.
3. 22nd March is celebrated as the World Water Day.
4. In Rajasthan 27 districts have excessive saline water, 30 districts have excessive flouride and 28 districts have excess of Iron elements.
5. Out of 236 blocks of Rajasthan, 140 Zones have been declared Dark Zones and 50 Zones as Grey Zones.
