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…

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) Give the collective term for the structure located in the internal ear.

(b) Name the sensory organ in the Cochlea which was damaged for Rajat Singh.

(c) What kind of pollution do the workers face in the stone quarry?