Sound becomes hazardous noise pollution at
level
(a) above 30 dB (b) above 80 dB
(c) above 100 dB (d) above 120 dB
Answers
Answered by
0
Answer:
D)
Explanation:
Sound becomes hazardous above 120 dB
Answered by
0
Sound becomes hazardous noise pollution at level above 80 dB.
Option (b).
Explanation:
- Sound is defined as when the sound waves pass through the medium of air it made a vibration of the molecule.
- The level of sound is measured by decibels(dB).
- The average sound level which is measured below 60 typically does not cause any damage to our ears.
- The sound level of more than 80 dB can cause noise which leads to dangerous hearing loss.
- This kind of noise will also affect our health by causing blood pressure and many disorder.
- Hence, the correct answer is 'Above 80 dB'.
- City traffic can contain the sound level up to 80-85dB
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