2. Sample Papers
  3. 6th Class
  4. Science

6th Class Science Sample Paper Science Olympiad Model Test Paper-9

  • question_answer
    What is the percentage of carbon dioxide in air by volume?

    A) 1%

    B) 3%

    C) 5%

    D) Less than 1%

    E) None of these

    Correct Answer: D

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