Question

sound waves usually travel through the air, though they can also move through liquid, like water, or through a solid, like a wall. sound waves are created by a vibrating object. the vibration of the object sends out sound waves. when a sound wave is very powerful, you can even feel the vibrations. that’s why when you’re at a concert, you can sometimes feel vibrations from the music. you hear sound because your ear detects the vibrations moving through the air. inside your ear is an eardrum. it is a thin membrane that picks up vibrations. which of the following is true about the eardrum? a it turns all kinds of waves into vibrations. b it picks up vibrations from sound waves. c it’s a liquid that sound waves travel through. d it’s a solid wall in the ear that blocks vibrations.

Explanation:

The text states that "Inside your ear is an eardrum. It is a thin membrane that picks up vibrations." This directly supports option B. Option A is incorrect as it doesn't turn all kinds of waves into vibrations, just sound - wave vibrations. Option C is wrong since it's not a liquid. Option D is incorrect as it doesn't block vibrations but picks them up.

Answer:

B. It picks up vibrations from sound waves.