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Question

Unwanted sound is called .......... .

A
Echo
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B
Noise
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C
Decibel
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D
Vibration
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Solution

The correct option is B Noise
Unwanted or unpleasant sounds are known as noise. Sounds that are melodious and pleasing to the ear are known as music. (g) True. Unwanted or unpleasant sounds are known as noise. If one is subjected to loud unpleasant sounds continuously for a long time, then it may cause temporary hearing impairment.

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