Respiratory illnesses in developing countries are most likely to be caused by ____.
A) formaldehyde
B) cigarette smoke
C) particulate matter
D) asbestos
E) chloroform

Question

Quizplus · Accepted Answer

Particulate matter is a significant cause of respiratory illnesses in developing countries, largely due to air pollution from sources like vehicle emissions, industrial activities, and the burning of biomass for cooking and heating.

Respiratory Illnesses in Developing Countries Are Most Likely to Be