Chapter 8:Water resources

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Across
  1. 1. this country has the least desalination plants between Middle East, North America, Europe, Asia and Africa
  2. 3. The water consumption per person between 1995 to 2005 ________
  3. 5. A _________ area refers to an area over which rain falls and is collected. This area may be a forest surrounding a reservoir.
  4. 7. An _____________ agreement on water is an arrangement between two or more countries regarding the supply and use of water resources over a specific period of time.
  5. 9. Water __________ occurs when there is a shortage of water to meet the needs of people.
  6. 11. Being in a weak or unfavourable position.
  7. 14. Process of converting sea water into fresh water by removing salt from the sea water
  8. 15. ____ water takes up 97% of the sea
  9. 17. The radiation is used to disinfect water
Down
  1. 1. An activity that uses over 40% of fresh water supplies
  2. 2. Water ___________ is produced when impurities are removed from waste water through a treatment process.
  3. 4. The careful use of resources to ensure that wastage is kept to a minimum
  4. 6. The process of filtering water to remove larger sized particles and bacteria from the water.
  5. 8. Reversed _______ is the process of forcing water through a special membrane to remove very small particles, such as bacteria and dissolved salts, from water.
  6. 10. It refers to the knowledge, skills and tools that people use to meet their needs.
  7. 12. One way of increasing water supply is to ___ water from neighbouring countries.
  8. 13. _______ houses takes up the most water consumption.
  9. 14. The process of water filtration used in desalination where water is boiled and the water vapour is collected and condensed into fresh water.
  10. 16. Singapore's national water agency, educating the public on the ways to conserve the use of water in our daily lives.
  11. 18. I_d_a got river