2. Sample Papers
  3. 9th Class
  4. Science

9th Class Science Sample Paper Science Olympiad Model Test Paper-7

  • question_answer
    Which one of the following is not a heterogeneous mixture?

    A) Rock    

    B)  Smoke

    C)  Muddy water

    D)  clean air            

    E)  None of these

    Correct Answer: D

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