Question

Give reasons for the following
1. Aircrafts have pressurised cabins​

Answer 1

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. This is called hypoxia and can cause slower thinking, dimmed vision, and death. To prevent all of these complications, the cabins of many aircraft are pressurized to near sea level pressure, which makes breathing in an airplane about the same as breathing at sea level.

Answer 2

Airplanes are pressurized because the air is very thin at the altitude they fly. ... To prevent all of these complications, the cabins of many aircraft are pressurized to near sea level pressure, which makes breathing in an airplane about the same as breathing at sea level.