Air pollution can result in Emphysema, which is

1. A. Damage to any Lung tissue causing increase in elasticity of the air sacs
2. B. Chronic damage to air sacs or alveoli leading to abnormal reduction in respiratory surface area
3. C. Persistent inflammation and damage to the cells lining the bronchi and bronchioles
4. D. An allergic reaction causing musclespasms in the bronchial walls

Attempt this NEET 2017 Biology question free — pick an option to reveal the correct answer and a step-by-step explanation. Then join NEET Mastery Quest to practise 15,000+ PYQ and 2027-syllabus questions.