Question

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?

 

Hint:

Noise pollution, especially in industries like stone quarrying, can cause irreversible damage to hearing if proper protective measures are not taken.

Answer 1

(a) Give the collective term for the structure located in the internal ear. 
The collective term for the structure located in the internal ear is the labyrinth. It consists of the cochlea, vestibule, and semicircular canals, all of which contribute to hearing and balance. 
(b) Name the sensory organ in the Cochlea which was damaged for Rajat Singh. 
The sensory organ in the cochlea that was damaged for Rajat Singh is the organ of Corti. It contains hair cells that are responsible for converting sound vibrations into electrical signals for the brain to interpret as sound. 
(c) What kind of pollution do the workers face in the stone quarry? 
The workers in the stone quarry are primarily exposed to noise pollution. The high decibel levels from the drilling and blasting operations can lead to hearing damage and other health issues related to prolonged exposure to loud noises.