before a jet plane takes off , it is filled with air and all doors and windows are sealed why is tis neccessary

  1. An aeroplane is made close with all its doors and windows as while taking off and flying, the air pressure is very high. This air pressure can imbalance the aeroplane. Also this is a danger to passengers inside the plane as this air pressure can push them outside the plane also.

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i dont know

eeeeeeeeeeeeeeeeeeeeeeeee

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how do i know

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