Water Resources Chapter 9

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Across
  1. 2. canal to carry water from one place to another
  2. 5. _____ irrigation is the oldest type
  3. 7. process to remove salt from water
  4. 9. most aboveground freshwater is in this form
  5. 10. desalination removes this from water
  6. 11. enlarged bank built up on each side of a river
  7. 13. _____ irrigation is the most efficient
  8. 14. _____ footprint measures use of freshwater
  9. 15. water ____ is the upper level of soil saturation
  10. 17. land adjacent to a river
  11. 20. stair-like structures are used to help _____ get around dams
Down
  1. 1. dikes are common in northern ______
  2. 3. _____ of depression lacks groundwater
  3. 4. natural percolation of from an aquifer
  4. 6. group of people famous for their early aqueducts
  5. 7. structure prevents ocean water from flooding land
  6. 8. rock layer that contains groundwater
  7. 12. most expensive form of irrigation
  8. 14. used to access aquifer water
  9. 16. river barrier used to control flow of water
  10. 18. reverse _____ is a type of desalination
  11. 19. prolonged period of abnormally low rainfall