7.1 Why Is Clean Water Important to Us?

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Across
  1. 2. Rain falls on networks of drains, river and canals which will then be channelled here.
  2. 5. A method used to remove salt from seawater and turns it into drinking water.
  3. 7. A process which green plants use water, sunlight and carbon dioxide to make food.
  4. 10. A method to collcet water vapour from seawater in desalination.
  5. 11. not drinking enough of water may lead to ____.
Down
  1. 1. Produced by recycling used water and is used mainly for industrial purposes.
  2. 3. Water is found in our ____ to transport substances in our circulatory system.
  3. 4. The method in which treated water is passed through membranes with small holes to filter out larger solids and bacteria.
  4. 6. ___ may reduce our supply of drinking water and increase the cost of producing drinking water.
  5. 8. One of the Four National Taps are ___ water.
  6. 9. Supports life processes.