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A unit to compare the loudness of different sounds.

A)Amplitude

B)Loudness

C)Decibels

D)Frequency

 Feb 4, 2020
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This is considered an off-topic question.

The answer is Decibels (db).

"Sound is measured in units called decibels (dB). The higher the decibel level, the louder the noise. On the decibel scale, the level increase of 10 means that a sound is actually 10 times more intense, or powerful." credited to earq.com.

 Feb 5, 2020

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