QQuestion
Rajat Singh was working as a supervisor in a stone quarry where rock, sand and gravel are extracted by techniques like digging, drilling and blasting. As the years rolled by, Rajat started facing a loss in hearing. The high decibel sounds had damaged a part of his internal ear, though the tympanic membrane was intact.

(a) What is the collective term for the structures of the internal ear?
(b) Name the sensory organ in the cochlea that was damaged.
(c) Name the type of pollution responsible for this condition.