When air plane fly at higher altitude it is not right to keep a founta

1.	When air plane fly at higher altitude it is not right to keep a fountain pen in a pocket.
Answer» Solution :As the ALTITUDE increases pressure DECREASES . The ink in the refil of pen is filled at atmospheric pressure . Whenair plane fly up the atmospheric pressure on the ink decreases and hence ink COMES out on cloth .Hence , when the air plane fly up , it is not rightto KEEPA fountain pen in a pocket .

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