[Solved]: Millions of workers continue to be at risk of health…

Millions of workers continue to be at risk of health hazards. Occupational respiratorydiseases are a group of respiratory disorders caused by acute or chronic exposure to toxicsubstance in the workplaces. One of the common occupational respiratory diseases issilicosis. (a) Briefly explain the aetiology of silicosis, and give FIVE occupations at risk for silicosis. ( 10 ) (b) Discuss the silicosis control measures at workplaces according to the hierarchy ofcontrol. ( 10 ) (