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What is used during sleep in order to avoid noise pollution?

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in Energy Management by (679k points)
What is used during sleep in order to avoid noise pollution?

(a) Mask

(b) Earplugs

(c) Cotton shirts

(d) Jackets

I had been asked this question in final exam.

The above asked question is from Noise Pollution Control Techniques topic in portion Environmental Pollution of Energy Management

1 Answer

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Correct answer is (b) Earplugs

The best I can explain: Earplugs reduced the noise pollution which can help humans to sleep peacefully. Earplugs are a cheap drugstore purchase that makes humans sleep by barring the noise. Noise canceling headphones are also used while sleeping to reduce noise.

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