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    Question

    An aeroplane rises

    becauseĀ 
    A Of upward reaction of air. Correct Answer Incorrect Answer
    B The density of air above the plane is less than below it. Correct Answer Incorrect Answer
    C the pressure above its wings is less than the pressure below them Correct Answer Incorrect Answer
    D Its nose points upwards. Correct Answer Incorrect Answer

    Solution

    An aeroplane rises because the pressure above its wings is less than the pressure below them.Ā 

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