Recent studies indicate that two of the most dangerous components of air pollution in and around major cities in the United States are
A)fine particles and sulfur pollution.
B)carbon monoxide and ozone.
C)lead and volatile organic compounds.
D)radon and carbon monoxide.

Question

Quizplus · Accepted Answer

Fine particles and sulfur pollution are both major components of air pollution in and around major cities in the United States.

Recent Studies Indicate That Two of the Most Dangerous Components