Geography - Water Resources

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Across
  1. 4. growth a reason for water constraint
  2. 6. the careful use of resources to ensure that wastage is kept to a minimum
  3. 9. being in a weak or unfavourable condition
  4. 10. the use of advanced membrane technology to further treat used water to produce a very high grade water
  5. 12. one way to encourage water conservation
  6. 13. the process of filtering water to remove larger sized particles and bacteria from the water
  7. 16. the process of water filtration used in desalination where water is boiled and the water vapour is collected and condensed into fresh water.
  8. 17. the process of converting sea water into fresh water by removing salt from the sea water.
  9. 18. fresh water which is saved in rivers, streams and lakes
  10. 19. an area which rain falls and is collected
Down
  1. 1. a reason for the uneven distribution of fresh water supply
  2. 2. fresh water which is found deep underground
  3. 3. the problem of water constraint in Singapore
  4. 5. the short form for the natural water agency
  5. 7. the knowledge, skills and tools that people use to meet their need
  6. 8. the process of forcing water through a special membrane to remove very small particles
  7. 11. short form for Water Conservation Tax
  8. 14. reclaimed water is also known as
  9. 15. water that is much cleaner than used water
  10. 20. the Ministry of the Environment and Water Resources is also known as