A. CH4, N2, CO2 and NH3
B. CO2, O2, NO2 and NH3
C. Chloro-fluoro-carbons, CO2, NH3 and N2
D. CO2, chloro-fluoro-carbons, CH4 and NO2
Correct Answer: CO2, chloro-fluoro-carbons, CH4 and NO2 ✔
Last Updated: May 23, 2024
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