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  3. 9th Class
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9th Class Science Sample Paper Science Olympiad Model Test Paper-16

  • question_answer
    Which one of the following radioactive's isotope is directed at the cancerous tumour in the human body to burn the cancerous cells?

    A) Germanium

    B) Cobalt

    C) Uranium

    D) Iodine

    E) None of these

    Correct Answer: B

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