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when the ink is filled inside the pen at normal sea level,
it is filled at a certain atmospheric pressure.
when we go to a higher altitude
the pressure increases
the air column exerts a pressure on the ink in the tube of the pen,
as a result of which the ink is pushed upwards.
 The pressure of atmosphere becomes so extreme at a point that the pen ink starts leaking
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Alright! Thank you. :)
w e l c o m e
Pressure is higher at high altitudes
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