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  3. 4th Class
  4. Science

4th Class Science Sample Paper Science Olympiad Model Test Paper-4

  • question_answer
    Direction: are based on the following figure:
    In which one of the following system the organ belongs to?

    A) Respiratory system

    B) Circulatory system

    C) Digestive system

    D) Excretory system

    E) None of these

    Correct Answer: B

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