The term "Green Muffler" refers to the concept of using trees and shrubs planted in strategic locations, often in multiple rows along roads, highways, and industrial areas, to absorb and dissipate sound waves, thereby reducing noise pollution. The dense foliage acts as a barrier and a sound-absorbing medium.
Green Muffler is
Asked in UPSC CAPF 2012 · Topic: Pollution (Noise Pollution: Sources, impacts on health & wildlife, permissible limits, mitigation.)
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Answer: C. plantation along roadsides to reduce noise pol‐ lution
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