Question

Green muffler is useful against
(A) Air pollution
(B) Noise pollution
(C) Soil pollution
(D) Radioactive pollution

Answer 1

Hint: Planting more trees can reduce pollution. This will lead to an increase in the oxygen level in the atmosphere. Trees also provide food, protection, and homes for many birds and animals. Muffler is also a device that can be used in the vehicles to perform specific roles.

Complete answer:
1.Green Muffler is a time-tested practice that can be helpful in controlling noise pollution. In this practice, the plantation can be done row-wise nearby the populated areas such as industrial areas, societies developed near highways, and so on.
2.The increasing number of dense trees through this initiative can reduce noise pollution at a broad level. They filter out the noise and obstruct it from reaching up to the ear of the people.
3.It is also a device for decreasing the amount of noise emitted by the exhaust of an internal combustion engine.
4.In most of the internal combustion engines, the mufflers are installed within the exhaust panel system.
5.It is designed after thorough observation and research that can be highly effective in order to minimize the loudness of the sound pressure.
6.The specialized technique to overcome the problem of noise is called muffler in an engine while controlling the noise pollution by planting green trees is Green Muffler.

Hence, the correct answer is option (B)

Note: Most of the trees that are already planted within this initiative are either Ashoka or Neem.
An advantage of using plants as noise blockers is that they absorb sounds best in the high frequencies that people find annoying. Trees absorb sound waves with their branches and foliage.