water resources

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