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Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools).

/ CHEMICAL ENGINEERING, Environmental Engineering / By
Question: Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools).
[A].

1-2

[B].

5-10

[C].

15-20

[D].

25-30

Answer: Option B

Explanation:

No answer description available for this question.