2. Sample Papers
  3. 8th Class
  4. Science

8th Class Science Sample Paper Science Olympiad Model Test Paper-3

  • question_answer
    Which one of the following is not a pollutant unless present in excess in the atmosphere?

    A) Sulphur dioxide

    B) Carbon monoxide

    C) Nitrogen oxide

    D) Carbon dioxide

    E) None of these

    Correct Answer: D

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