Noise pollution
- Go to bit.ly/efectoscontaminacion. Read the explanation about noise pollution and watch the related video.
a) List the different types of noise pollution mentioned in the video.
Traffic, industrial activity ,ports and airports
b) What decibel level does the World Health Organization define as noise pollution? Is it the same for all cities and all public places?
65 dB, but it's not the same at all cityes
c) Describe four negative effects of noise pollution that have an impact on people’s health.
sleeplessness, headache, stress,anxiety.
2. In your Workbook, complete these sentences with words related to sound qualities:
a) The property or parameter relating to time is duration .
b) A loud or soft sound tells us about its intensity .
c) That voice sounds familiar; I recognise its timber .
d) His voice was so quiet that I could hardly hear it.
e) That siren was emitting a sound that was very loud .

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