![Main sources of noise pollution are](https://www.gkseries.com/blog/wp-content/uploads/2022/05/Main-sources-of-noise-pollution-are-1.png)
Q. Main sources of noise pollution are
A. Transportation equipment only
B. Heavy machinery only
C. musical instruments
D. Transportation equipment and heavy machinery
Answer: Transportation equipment and heavy machinery
A. Transportation equipment only
B. Heavy machinery only
C. musical instruments
D. Transportation equipment and heavy machinery
Answer: Transportation equipment and heavy machinery
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