What happens if there's a hole in an airplane at an altitude of 10 kilometers?

Which part ? i could answer tell me

Seeing as you're so high up, a hole in the plane can lead to violent decompression and a loss of atmosphere, so the flight crew needs to get more atmosphere into the plane and equalize the pressure. The way to do that would be to drop to the much safer altitude of 10,000 feet, where the atmosphere isn't as thin.

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

c because the news are a source of information of things that happen on the daily and shows evidence about that particular topic