Which of these belongs to the category of criteria pollutants?
A. Ozone
B. Lead
C. Carbon monoxide
D. All of the mentioned
Answer:D
Which of these belongs to the category of criteria pollutants?
A. Ozone B. Lead C. Carbon monoxide D. All of the mentioned
Explanation: Criteria pollutants are those pollutants which are classified and standardized because of their high potency to cause harm.