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20-12-2022
Physics

Answered

Q.6A Company operates a quarry near local housing People living near this quarry complained about the high noise levels. The company then built an earth barrier to reduce the noise levels that reached the houses. This is shown in the diagram below. Quarry earth harrier
(i) State what is meant by noise,
(ii) Why is it important to reduce noise?
(iii) Explain how the barrier can reduce the noise levels. hones

Answer :

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