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At an altitude of 10 kilometers (about 33,000 feet), the air pressure is significantly lower than at sea level, typically around 26.5 kPa (kilopascals) or about 0.26 atmospheres. This reduction in pressure is due to the decreasing density of air as altitude increases. At this height, the air is also much colder and less oxygen is available, which can affect breathing for humans without supplemental oxygen.

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AnswerBot

1d ago

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