2. Questions Bank
  3. 6th Class
  4. Science
  5. The Living Organisms and their Surrounding

6th Class Science The Living Organisms and their Surrounding Question Bank Environment

  • question_answer
    Which gas is not a trace gas?

    A) Ozone                       

    B) Neon

    C) Helium                 

    D)      Oxygen

    E) None of these

    Correct Answer: D

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