10th Class Science Sample Paper Science Olympiad Model Test Paper-12

  • question_answer
    The metals which are extremely important in strengthening the economy and defence of the country and are also used in the nuclear energy projects, space projects, etc. are known as______.

    A) Pure metal

    B) Radioactive elements

    C) Semi metals

    D) Strategic metals

    E) None of these

    Correct Answer: D


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