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TNPSC Group 4 General Knowledge 2018 Paper

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Question : 14

Total: 100

Which of the following pairs are incorrect?
I. Chloroflurocarbons - Refrigerators
II. Methane - Ploughing of fields
III. Nitrous oxide - Enteric fermentation in cows
IV. Carbon dioxide - Burning of fossil fuels

I and II
II and III
III and IV
I and IV

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