Correct option is C
The correct answer is (c) Decibel (dB)
Explanation:
· Noise levels are measured in
decibels (dB).
· It indicates the intensity or loudness of sound.
· Higher dB = louder and more harmful sound.
Information Booster:
· Normal conversation:
40–60 dB
· Traffic noise:
70–85 dB
· Above
85 dB causes hearing damage with prolonged exposure.