Photo chemical smog formed in congested metropolitan cities mainly consists of –
A. Ozone, SO2 and hydrocarbons
B. Ozone, PAN and NO2
C. PAN, smoke and SO2
D. Hydrocarbons, SO2 and CO2
Answer:B
Photo chemical smog formed in congested metropolitan cities mainly consists of –
A. Ozone, SO2 and hydrocarbons B. Ozone, PAN and NO2 C. PAN, smoke and SO2 D. Hydrocarbons, SO2 and CO2