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  3. 9th Class
  4. Science
  5. Natural resources

9th Class Science Natural resources Question Bank Natural Resources

  • question_answer
    Arrange the following components in decreasing order according to their percentage present in air.

    A) Nitrogen, Oxygen, Argon, Carbon dioxide.

    B) Oxygen, Argon, Carbon dioxide, Nitrogen.

    C) Nitrogen, Carbon dioxide, Oxygen, Argon.

    D) Nitrogen, Oxygen, Carbon dioxide, Argon.

    E) None of these

    Correct Answer: A

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