Airplanes are pressurized because the air is very thin at the altitude they fly. The average passenger jet has a cruising 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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Answer:
Airplanes are pressurized because the air is very thin at the altitude they fly. The average passenger jet has a cruising altitude of about 30,000 to 40,000 feet. At this altitude humans can't breathe very well and our body gets less oxygen.
Explanation:
hope my answer is helpful for you,OK take care byee
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