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What happens to the the eardrum, a thin membrane at the end of the ear canal, when it is struck by a sound wave? a) It vibrates. b) It closes. c) It rotates. d) It inverts.
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30 votes
30 votes
What happens to the the eardrum, a thin membrane at the end of the ear canal, when it is struck by a sound wave?

a) It vibrates.
b) It closes.
c) It rotates.
d) It inverts.

User Hanesjw
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1 Answer

19 votes
19 votes
i think the correct answer is a.) it vibrates:]
User JeremyK
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