Q. In heavy smokers, the alveoil of the lungs are enlarged and damaged, which reduces the surface area for the exchange of respiratory gases. The condition is called

A) Asthma
B) Silicosis
C) Emphhysema
D) Insomnia
Explanation

Smoking causes inflammation of lung alveoli, which decreases surface area for gaseous exchange and causes emphysema.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.