Question

How can we use reflection or absorption
of sound to reduce the noise pollution on
highways​

Answer 1

a noise barrier (also called a soundwall, noise wall, sound berm, sound barrier, or acoustical barrier) is an exterior structure designed to protect inhabitants of sensitive land use areas from noise pollution. Noise barriers are the most effective method of mitigating roadway, railway, and industrial noise sources – other than cessation of the source activity or use of source controls.

Answer 2

Answer:

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