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UPSC Geography The origin and evolution of the earth Question Bank Universe / Sun / Planets / Earth

  • question_answer
    What is the primary cause of the day and night?

    A)  Earths annual motion

    B)  Earth's rotation on its axis

    C)  Inclination of the earth's axis and its rotation

    D)  Inclination of the earth's axis and its revolution

    Correct Answer: B

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