How can noise pollution be controlled?

Explanation

(i) Planting trees in and around noise sources is an effective solution for noise pollution as plants are known to absorb noise and bring down sound levels.
(ii) Regular servicing and tuning of automobile engines can effectively reduce noise pollution by vehicles and machinery.
(iii) Workers should be provided with ear plugs and earmuffs at work sites that generate high noise levels.
(iv) Lubrication of machinery and regular servicing minimizes noise levels.
(v) Regulations should be imposed to restrict the usage of loudspeakers in crowded areas and public places.