Environment & Ecology · Environmental Science
Which of the following statements about noise pollution are correct? A. The decibel scale expresses sound intensity logarithmically and is an objective measure of sound. B. L50 represents the average peak level of fluctuating noise duration. C. A sound level of 150 dB can rupture the human eardrum; 180 dB can be fatal. D. A-weighting in sound meters mimics human auditory sensitivity between 20 Hz to 20 kHz.
- 1All of the above
- 2Only B, C, and D
- 3Only A, B, and D
- 4Only A, C, and D✓
Correct answer
Only A, C, and D
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