Wastewater Story

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Across
  1. 3. A pipe carrying sewage
  2. 5. Micro-organisms which causes cholera
  3. 6. Used water
  4. 7. A chemical to disinfect water
Down
  1. 1. Liquid waste products
  2. 2. A word related to hygiene
  3. 3. solid waste extracted in sewage treatment
  4. 4. Waste matter discharged from human body