Question

Human lungs have 300 million alveoli. This means that human lungs have a surface area equivalent to the area of a tennis court. Think about why the surface area of lungs is so large, and describe the effects of pollutants on human lungs.

Answer 1

Due to the many surface walls of the alveoli, the lungs have a surface area that is approximately the size of a tennis court, this surface area allows rapid exchange of gases.