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memenbering/UMultiple choice questionsA. Choose the correct option.1. Air exerts pressureb) sidewaysd) in all directionsa) downwardsc) upwardsA tin roof may blow off when wind speedsare high because ofa) high pressure due to high wind speedb)low pressure due to low wind speedc) low pressure due to high wind speedd) excessive rainfall2.

Answer» <p>d} in all directionsc} as more speed of wind causes a low pressure, hence the air below the roof exerts an upward force to lift up the roof.Brief explanation: When the velocity of the wind is great enough, the air pressure above the surface is lower compared to that underneath. This cause the roof to blow off. The aeroplane work in the same principle (lower pressure on top surface).</p> <p>which is this school </p>


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