H2O challenge

12345678910111213141516171819
Across
  1. 1. - a water borne disease
  2. 3. - man-made structure to store water
  3. 4. - water that falls from a height
  4. 7. - the longest river in the world
  5. 8. ocean - the largest ocean in the world
  6. 9. - use of a chemical to clean water, also leaves a pungent smell
  7. 11. - process used to purify water
  8. 14. - impurities found in water
  9. 16. - process used to generate salt
  10. 19. - process to remove salt from water
Down
  1. 2. - an ancient civilisation along a river bank
  2. 3. - process in which water is heated and then cooled
  3. 5. - disease caused by consuming unclean water
  4. 6. - phenomenon caused by deforestation
  5. 10. energy - form of energy generated using water
  6. 12. - a form of water that is solid in nature
  7. 13. - natural calamity caused by water
  8. 15. - a vector borne disease
  9. 17. - a source of water that comes out of the ground in an upward direction
  10. 18. - India's most polluted river