please answer this question..
ï will mark best answer as brainliest. ...answer in One word or sentence...no spamming...
Answers
Answer:
1 sound, especially one that is loud or unpleasant
is called noise...
2 decibels..
3 noise pollution....
4 The standard threshold of hearing at 1000 Hz is nominally taken to be 0 dB, but the actual curves show the measured threshold at 1000 Hz to be about 4 dB......
5 Pain threshold 120-140 dB
6 false
7 You can have a temporary hearing loss or you can have a permanent hearing loss. A temporary hearing loss is also called a temporary threshold shift. A permanent hearing loss is called a permanent threshold shift....
8 Then a "3-dB exchange rate" formula is applied, which means that for every 3 dB above 85 dBA, the maximum exposure time is cut in half. Noise levels above 140 dB are not considered safe for any period of time, however brief. For children, the World Health Organization (WHO) recommends no exposure above 120 dB....
9 Sound becomes physically painful above 80 dB -....
10. Wildlife faces far more problems than humans because of noise pollution since they are more dependent on sound. ...
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