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  5. Earth and Universe

7th Class General Knowledge Earth and Universe Question Bank Universe

  • question_answer
    Jupiter has many moons. The four largest moons namely 10, Europa, Ganymede and Callisto were first observed by which of the following astronomer?

    A)  Galileo Galilei

    B)  E, E. Barnard

    C)  P.J. Melotte

    D)  C.D. Perrine

    Correct Answer: A

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