mariannicole mariannicole

03-02-2017
Geography

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Why do airplanes have pressurized cabins?

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Noname111 Noname111

03-02-2017

Because the air is very thin at the altitude they fly. The average passenger jet has a causing altitude of about 30,000 to 40,000 feet. At this altitude humans can't breathe very well and our body gets less oxygen.

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