Question

Why are cabins of aeroplanes flying at high altitude are pressurised?

Answer 1

cabins are pressurised because the difference between the pressure outside the plane and inside, it makes a large difference

Answer 2

Answer:

The cabins of aeroplanes flying high in the sky are pressurized as the outside pressure is way low than the inner pressure thus if this was not done humans would die as air would not be sufficient.

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