water resources

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Across
  1. 2. process of filtering water to remove larger sized particles
  2. 6. used water that goes through the recycling process
  3. 7. the problem of water shortage
  4. 8. where water is not clean and has impurities
  5. 12. process of forcing water through a special membrane
  6. 14. the growing of crops
  7. 15. needed for drinking
  8. 17. water that comes from rain
  9. 18. refers to the careful use of water resources
  10. 19. the supply of water
  11. 20. to create new water resources
Down
  1. 1. an agreement between two or more countries regarding use of water resources
  2. 3. area where rain falls and is collected
  3. 4. used water that goes through the reclamation process
  4. 5. where water is clean and pure
  5. 9. freshwater that is stored in rivers,streams and lakes
  6. 10. where water is collected and stored for use
  7. 11. process of removing salt from sea water
  8. 13. being in a weak or unfavourable position
  9. 16. process of water filtration