Question

which air pollutant is most likely to cause bronchitis?
○ pollution
○ ozone
○ carbon monoxide
○ emissions

Explanation:

To determine the air pollutant causing bronchitis, analyze each option:

• "Pollution" is a general term, not a specific pollutant.
• "Ozone" (in smog) irritates the respiratory system, increasing bronchitis risk.
• "Carbon monoxide" affects oxygen transport, not primarily bronchitis.
• "Emissions" are releases, not a specific pollutant.

Ozone is a known respiratory irritant linked to bronchitis.

Answer:

B. ozone