C-07-Q112mediumsingle_mcqMethane combustion CH4+2O2→CO2+2H2O+Energy\mathrm{CH_4 + 2O_2 \to CO_2 + 2H_2O + Energy}CH4+2O2→CO2+2H2O+Energy is mainly used as—acooking fuelbfertilizercmedicinedpaint