A. ozone
B. carbonic acid
C. sulphuric acid
D. carbon dioxide
¨ Ozone and sulfuric acid are examples of secondary pollutants because they are formed through chemical reactions between primary pollutants and other atmospheric components. Carbon dioxide is a primary pollutant because it is directly emitted into the atmosphere from various sources such as vehicles, power plants, and industrial processes.
Submitted by :- Jamil Ahmed