'Pneumoconiosis' is a disease caused by the inhalation of ______________ dust?
Correct answer: A. Coal
- A. Coal
- B. Uranium ore
- C. Iron ore
- D. Lime
Explanation
Pneumoconiosis is a group of lung diseases caused by inhaled mineral dust, and coal dust produces the well-known coal-worker form. Silica and iron dust have more specific names, silicosis and siderosis, respectively.
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