Sec 2 Exp - Water resources

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Sec 2 Exp - Water resources

  1. 1. www.chua-geography.blogspot.com
  2. 2. Water Resources Workbook Pg 81 to 84
  3. 3. Uses of water <ul><li>Drinking </li></ul>
  4. 4. Uses of water <ul><li>Domestic uses </li></ul>
  5. 5. Uses of water <ul><li>Industrial usage </li></ul><ul><ul><li>Cooling of machines </li></ul></ul><ul><ul><li>Washing of machines </li></ul></ul>
  6. 6. Uses of water <ul><li>Agriculture </li></ul>
  7. 7. Water Cycle
  8. 8. Reasons for water constraint <ul><li>Limited supply of fresh water </li></ul><ul><ul><li>Uneven distribution of fresh water. </li></ul></ul><ul><ul><li>Water pollution </li></ul></ul>
  9. 14. Reasons for water constraint <ul><li>Rising demand for water </li></ul>
  10. 15. Population growth
  11. 16. Growth of agriculture
  12. 17. Growth of industries
  13. 18. Change in lifestyle
  14. 21. Spa
  15. 24. Responses to rising demand for water <ul><li>Increase the price of water </li></ul>
  16. 25. Responses to rising demand for water <ul><li>Increase the supply of water </li></ul><ul><ul><li>Increase catchment area </li></ul></ul>
  17. 26. Responses to rising demand for water <ul><li>Increase the supply of water </li></ul><ul><ul><li>International agreements </li></ul></ul><ul><ul><ul><li>Buy water from another country </li></ul></ul></ul><ul><ul><ul><li>Example Singapore & Malaysia </li></ul></ul></ul><ul><ul><ul><li>Example Mekong river </li></ul></ul></ul>
  18. 29. Responses to rising demand for water <ul><li>Increase the supply of water </li></ul><ul><ul><li>Use of technology </li></ul></ul><ul><ul><ul><li>Recycling water or reclaimed water </li></ul></ul></ul><ul><ul><ul><li>Desalination </li></ul></ul></ul>
  19. 35. Desalination
  20. 36. Responses to rising demand for water <ul><li>Conserving water </li></ul>
  21. 38. <ul><li>Toilet in Japan </li></ul><ul><ul><li>Can you see the sink behind the toilet bowl? </li></ul></ul><ul><ul><li>What is it for? </li></ul></ul>
  22. 43. Grow more trees
  23. 44. Water supply in Singapore <ul><li>Why does Singapore face the problem of water constraint? </li></ul><ul><ul><li>Rivers in Singapore do not provide an adequate supply of fresh water to meet the demand. </li></ul></ul><ul><ul><li>Although Singapore experience high rainfall but there are also dry spell in June to October. </li></ul></ul><ul><ul><li>Loss of water catchment area due to clearing of land for housing and industries. </li></ul></ul>
  24. 45. Growing demand of water <ul><li>Increase in population </li></ul><ul><li>Growth in industries </li></ul><ul><ul><li>Wafer fabrication </li></ul></ul><ul><li>Change in lifestyle </li></ul><ul><ul><li>Use of washing machines & dish washer </li></ul></ul>
  25. 46. Methods to increase water in Singapore <ul><li>Tap 1 </li></ul><ul><li>Water from local catchment areas </li></ul>
  26. 48. Methods to increase water in Singapore <ul><li>Tap 2 </li></ul><ul><li>Imported water </li></ul><ul><ul><li>Buy water from Malaysia </li></ul></ul>
  27. 49. Methods to increase water in Singapore <ul><li>Tap 3 </li></ul><ul><li>NEWater </li></ul>
  28. 50. Methods to increase water in Singapore <ul><li>Tap 4 </li></ul><ul><li>Desalination Water </li></ul>
  29. 52. Methods to increase water in Singapore <ul><li>Policies and campaigns to conserve water supply </li></ul>

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