A. NO
B. CO
C. HCHO
D. DDT

Correct Answer:

Option C – HCHO

Explanation

Formaldehyde (HCHO) is the most important carcinogen in outdoor air among the 187 hazardous air pollutants (HAPs) identified by the U.S. Environmental Protection Agency (EPA)

Copyright warnings! Do not copy.

Earn Your Degree In 3 Years Without Writing UTME. Click Here To Learn More.