Water

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Across
  1. 2. What's the first stage of water treatment called?
  2. 4. when chlorine is added to water, what does it kill?
  3. 6. Where can water be abstracted
  4. 10. What is the water that fills the cracks and spaces in underground soil and rock layers called?
  5. 12. Why is the demand for water increasing?
  6. 13. What is the name of the water supply that is a barrier constructed to hold back water and raise its level
  7. 14. What is the first step in the water treatment process?
Down
  1. 1. What's the third stage of water treatment called?
  2. 3. Which is the most suitable source of water for drinking?
  3. 5. What's the second stage of water treatment called?
  4. 7. of manmade pollutants include
  5. 8. where does our home water come from?
  6. 9. what does water require before we drink it?
  7. 11. where do these dissolved minerals come from?