If you go for a hike in a mountainous area, you may find it difficult to breathe because the air pressure is lower at higher altitudes. But if you’re in a plane flying at thousands of feet, you don’t have trouble breathing, which is surprising.
The answer to this question lies in the design and mechanics of the aircraft. It is true that breathing is impossible at altitudes of thousands of feet, which is why mountaineers carry oxygen cylinders with them, but no such thing in a plane. There is no arrangement.
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In fact, the engine of the plane draws outside air into the cabin, and following entering the fuselage, the air is compressed due to the cabin pressure, due to which the low amount of oxygen in it increases and the passengers breathe properly. can take