why traveling in an aeroplane it is advise of remove ink from founding pen
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At higher altitudes the air pressure is less as compared to the pressure at surface of earth. But the refill of ink pen has the same pressure. So the ink comes out and the pen may leak
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Answer:
As we go up higher and higher the air becomes rare and atmospheric pressure lower, so that the volume of the air inside the fountain pen will also increase and the ink will be pushed out thus spoiling the clothes and hence the advice.
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