Question

what is the effect of smoking cigarettes on lung health?
a. it significantly increases the risk of lung cancer
b. it has a minimal impact on lung health
c. it improves lung capacity
d. it decreases the risk of developing respiratory diseases

Explanation:

Smoking is a well - known risk factor for lung cancer. Chemicals in cigarettes damage lung cells, leading to mutations that can cause cancer. Options b, c, and d are incorrect. Smoking has a major negative impact on lung health (not minimal), it does not improve lung capacity (it reduces it due to damage to alveoli and airways), and it increases (not decreases) the risk of respiratory diseases like chronic obstructive pulmonary disease (COPD).

Answer:

A. It significantly increases the risk of lung cancer