6. Match the List-I with List-II and select the correct answer using the codes given below the lists List-I (Green house gas)List-II(Major source)F.Carbondioxide1.Enteric fermentation in cattleG.Methane2.Burning of fossilH.Chloroflro carbons3.Mercury compounds in waste waterJ.Nitrous oxide4.Nylon production5.Air conditioner and refrigeration unitsCodes :FGHJA.2154B.3421C.3241D.1234 A.A B.B C.C D.D
Answer: Option A
