sue39
sue39
09-05-2016
Geography
contestada
why do they pressurize the cabin of airplane at 7,000 ft
Respuesta :
Insidious
Insidious
10-05-2016
Hey there!
Airplanes must be pressurized when flying at high altitudes so that the oxygen levels stay normal for us to breathe. The higher you go up, the thinner the air gets, which causes breathing problems for us humans.
Thank you!
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