Chemistry
Match the List-I with List-II and select the correct answer using the codes given below the listsList-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 production 5.Air conditioner and refrigeration unitsCodes :FGHJA.2154B.3421C.3241D.1234

Chemistry
The Latin word formica means ant. The name formic acid is derived from this Latin word because

this corrosive acid is secreted by ants to drive away their enemies
this acid was first obtained by the distillation of ants
this acid, in ancient times, was used to eliminate ant-hills
ants are attracted by the odour of this acid

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