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Damage to hearing is caused by sounds, which exceed
Damage to hearing is caused by sounds, which exceed
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Solution
The correct option is B 120 decibels
Noise is a level of sound beyond the capacity of ears. Normal level of sound for conversation is 60 decibels and lawn mower is 90 decibels that can not harm the ears but very high levels of noise (at or above 120 decibels) exposure can leads to hearing loss. Noise-induced hearing loss is irreversible, the main form of treatment is prevention.
Noise is a level of sound beyond the capacity of ears. Normal level of sound for conversation is 60 decibels and lawn mower is 90 decibels that can not harm the ears but very high levels of noise (at or above 120 decibels) exposure can leads to hearing loss. Noise-induced hearing loss is irreversible, the main form of treatment is prevention.
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