It is moderately quiet between:
Correct answer: B. 35-45 db
- A. 1-5 db
- B. 35-45 db
- C. 40-60 db
- D. 65-75 db
Explanation
A sound level of about 35 to 45 dB is commonly classified as moderately quiet in environmental-noise tables. The higher ranges represent ordinary moderate noise or increasingly noisy conditions.
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