What are the ways to reduce noise pollution?

Question

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Answer

Using sound absorbent materials or by muffling the noise, especially in the industrial areas.
Laws to reduce noise pollution should be strictly implemented.
Blowing of horns should be discouraged in the areas of schools and hospitals.
Firecrackers and loudspeakers should be completely banned. Government rules regarding this should be strictly followed.
Supreme Court of India has banned loudspeakers at public gatherings after 10 pm.
Awareness about noise pollution caused during festivals and processions should be spread among masses.

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Column A	Column B
(1) Sir Edward Sharpey Schafer	(a) Chemically synthesized DNA sequence of insulin
(2) Hakura	(b) Discovery of insulin
(3) Gilbert and Villokomaroff	(c) PCR
(4) K. Mullis	(d) Insulin production using r-DNA technology