With which of the following kinds of pollution is the term 'green muffler' associated?

The term green muffler refers to rows of trees planted along roads and around noisy sites to absorb and dampen sound, a control for noise pollution.

Water pollution concerns contaminants in water bodies and is unrelated to the green muffler idea.

Air pollution deals with harmful gases and particles, not with the muffling of sound by vegetation.

Nuclear pollution involves radioactive contamination, which trees cannot screen in this way.

Dense foliage scatters and absorbs sound energy, lowering noise levels behind the belt.

Such green belts are recommended along highways and near industrial zones.