| Q.4 | Which of the following is a rare lung disease caused by inhaling of hemp, flax or cotton particles and is referred to as ‘brown lung disease’? | |
| Ans | A. Emphysema | |
| B. Ecchymosis | ||
| C. Byssinosis | ||
| D. Chronic Obstructive Pulmonary Disease (COPD) |
Correct Ans Provided: C