The sound intensity in the front rows of a rock concert is approximately 110 decibels. A pair of earplugs reduces sound intensity by about 30 decibels. A person wearing earplugs who is seated in the front rows of a rock concert for one hour has sufficiently protected his or her ears from hearing damage.

Question

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The person wearing earplugs would be exposed to a sound intensity of approximately 80 decibels (110 dB - 30 dB) which is considered safe for up to 8 hours of exposure. Therefore, the person wearing earplugs for one hour in the front rows of a rock concert has sufficiently protected their ears from hearing damage.

The Sound Intensity in the Front Rows of a Rock