Question

Green muffler technique is helpful in controlling

• A. water pollution
• B. air pollution
• C. noise pollution
• D. soil pollution

Answer 1

The correct option is C noise pollution

Green muffler or green belt vegetation is a technique of reducing noise pollution by planting several rows of trees or shrubs around the noisy areas. These include roadsides, industrial areas, railway tracks, highways, etc. These act as noise absorbers and help to filter out excess noise. Therefore, the technique prevents noise from reaching the residential areas. Green belts are also maintained around residential areas to insulate individual complexes from noise produced by similar dwelling units.