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1057

Q: Damage to hearing is caused by sounds which exceed

  • 1
    70 decibles
  • 2
    80 decibles
  • 3
    100 decibles
  • 4
    120 decibles
  • Show Answer
  • Workspace

Answer : 4. "120 decibles"
Explanation :

Answer: D) 120 decibles Explanation: High frequency sound attacks the tympanic memberane and makes it defective. 120 decibles is too high a pitch to be heard and therefore it impairs the hearing ability.

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