Emphysema can be caused by
Pollution nitric oxide smoking steroids Pesticides pollen hormones hydrogen peroxide
A B C D E F G H
With emphysema, there is permanent lung damage in the alveoli.
smoking causes emphysema
Emphysema can be caused by (A) Pollution (B) nitric oxide (C) smoking (D) steroids (E) Pesticides (F) pollen (G) hormones (H) hydrogen peroxide