2. Questions Bank
  3. 7th Class
  4. Science
  5. Wastewater Story

7th Class Science Wastewater Story Question Bank Wastewater Story

  • question_answer
    Which process can remove dirt and sand from waste water?

    A) Chlorination               

    B) Sedimentation

    C) Flocculation                

    D) Aeration

    Correct Answer: B

    Solution :

    Sedimentation


You need to login to perform this action.
You will be redirected in 3 sec spinner