- A loud (a). (Speak) is a machine which increases the (b). (deep) of sound (c). (Pollute). Like many other pollutions, sound pollution is very (d). (danger) for human beings.(e). (quiet) is natural. It is essential for (f). (peace) life. Loud Speakers disturb not only the normal work but also ereate a (g). (noise) atmosphere. Missing news, news of (h). (politics) meeting, (i). (advertisee) of films and many other products are advertised by using loud speakers. Each and every citizen has to be conscious against (j). (discriminate) use of loud speakers.