2. Sample Papers
  3. Railways
  4. General Science & Technology
  5. Pollution of Air and Water

Railways General Science & Technology Pollution of Air and Water Sample Paper Water Pollution Sample Test Paper-21

  • question_answer
    Which of the following is not a marine pollutant?

    A)  Oil                  

    B)  Plastics

    C)  Dissolved oxygen

    D)  All of the above

    Correct Answer: C

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