Which part of the passage best relates its main idea?
It’s not possible for humans to live on the planet Jupiter. Jupiter is almost entirely made of gas and liquid, so there's barely any solid surface to stand on. Its atmosphere is made up of hydrogen and helium. It also contains ammonia, which is poisonous to humans. Plus, there isn’t much water on Jupiter. The giant planet spins about twice as fast as Earth on its axis and has a powerful magnetic field, making its atmosphere wild and stormy.