Question 6 (1 point) A bell is ringing inside of a sealed glass jar that is connected to a vacuum pump.
Initially, the jar is filled with air but the air is slowly removed from the jar by the
pump. What will you hear after ALL of the air is pumped out?
5
The frequency of the sound increases to produce a higher pitch sound,
No sound is heard as the medium carrying sound waves has been pumped out.
No change occurs.
The frequency of the sound decreases to produce a lower pitch sound.

b

explanation:

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.