The classical smog mainly contains:? Pollution Mcqs December 15, 2019 BILAL KHATTAK0 A.Hydrocarbons only B.Hydrocarbons and SO2 C.Hydrocarbons and N2OD.Particulate matter and SO2undefined Related Mcqs: Air pollutants common to urban environments are Fine organic or inorganic particles suspended in air is called __________? The light of cities is reduced in comparison to villages due to the presence of:? Photochemical smog formed in congested metropolitan cities mainly consists of:? The classical smog was first observed to:? The classical smog was first observed in the year:? Which one of the following is not a primary pollutant ? Which of the following is correct in relation to materiality?? Humus is:? At sea level atmospheric pressure and room temperature