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    Question

    What is the 'earthday' ?

    A The period of one rotation of the eartharound its axis. Correct Answer Incorrect Answer
    B The period taken by the earth in takingone revolution around the sun in its orbit. Correct Answer Incorrect Answer
    C The period which moon takes incompleting one revolution around the earth in its orbit. Correct Answer Incorrect Answer
    D The places beyond the Arctic Circleexperiencing continuous daylight for about six months. Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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