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    Question

    What do we call the force which affects the direction of

    wind and is caused by the rotation of the earth on its axis?
    A Frictional force Correct Answer Incorrect Answer
    B Pressure gradient force Correct Answer Incorrect Answer
    C Gravitational force Correct Answer Incorrect Answer
    D Coriolis force Correct Answer Incorrect Answer

    Solution

    Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This deflection is called the Coriolis effect.

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