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The permanent one is damage to the cochlea. Artificial implants are now available though.

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8y ago
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8y ago

Both (b) and (c) may be permanent, depending on how severe the damage is.

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Q: Which hearing problem is permanent a. the ear is blocked by wax b. the eardrum is damaged in an accident c. the cochlea can be damaged by a loud noise d. the middle ear can be clogged with mucus?
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