Q. ‘Black lung’ disease is caused by?

A
Silicon
B
carbon dioxide
C
sand
D
coal dust
Solution:

Coal workers’ pneumoconiosis (CWP), also known as black lung disease or black lung, is caused by long exposure to coal dust. It is common in coal miners and others who work with coal. It is similar to both silicosis from inhaling silica dust and to the long-term effects of tobacco smoking

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