Question

As an airplane rises through the atmosphere, machines cause the pressure inside the cabin to decrease. As the airplane descends toward Earth, machines cause the pressure inside the cabin to increase. Based on your observations from the Can Crush Lab, explain why these changes in pressure are necessary

Answer 1

Answer:

Because pressure change according heights.

Explanation:

So, human begins need several variable to exist and pressure is one of them, we need to have a exact amount of pressure to can stand, jump, even breath. So, when you go up, you change your distance from Earth surface and the result is that your are introducing yourself into a different pressure environment that could bring you problems.

So, in order to that not happen, pressure must be change.

Answer 2

They are necessary so the atmospheric pressure that is experienced on land is simulated and so people can breathe properly without having their heads explode or faint.