From his experiments, S.L. Miller produced amino
acids by mixing the following in a closed flask :
(1) ``\ce{CH4}`` , ``\ce{H2}``, ``\ce{NH3}`` and water vapor at 8008°C
(2) ``\ce{CH3},\ce{H2}, \ce{NH4}`` and water vapor at 8008°C
(3) ``\ce{CH4},\ce{H2},\ce{NH3}`` and water vapor at 6008°C
(4) ``\ce{CH3},\ce{H2},\ce{NH3}`` and water vapor at 6008°C