2. Questions Bank
  3. 8th Class
  4. Science
  5. Pollution of Air and Water

8th Class Science Pollution of Air and Water Question Bank Pollution of Air and Water

  • question_answer
    The depletion of oxygen due to excessive plant growth by the enrichment of nutrients in water is:

    A) Electrolysis                    

    B) Eutrophication

    C) Biodegradation

    D)        Chlorination

    E) None of these

    Correct Answer: B

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