The constituents of photochemical smog responsible for eye irritation are
A. SO2 and O3
B. SO2 and NO2
C. HCHO and PAN
D. SO2 and SPM
Answer:C
The constituents of photochemical smog responsible for eye irritation are
A. SO2 and O3 B. SO2 and NO2 C. HCHO and PAN D. SO2 and SPM