Which of the descriptions below does not explain the effects of air pollution on the respiratory system? it could restrict air flow through the bronchi. it could disrupt the rate of ventilation. it could prevent hemoglobin from binding to oxygen. it could increase carbon dioxide uptake in alveolar sacs.

Air pollution has a variety of effects upon health, including biochemical, physiological and breathing difficulties (such as increased coughing, increased C02 intake, restricting air flow, disrupt ventilation etc). The statement "It could restrict air flow through the bronchi" doesn't explain the effect of air pollution effectively enough.