Water Filtration

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Across
  1. 3. Is filtration a physical or additive treatment?
  2. 6. Which step in water filtration uses bleach
Down
  1. 1. what step uses a filter
  2. 2. Coagulation removes the sediments? True or false
  3. 4. Could people die of the water is not properly cleaned?
  4. 5. Which one goes first? Sedimentation or Coagulation?
  5. 7. Does filtration get rid of all the sediments