Other crossword clues for answer "METHANE"METHANEGas found around marshesIt's a gasMarsh gasCH4Swamp gas, mostlyMarsh gas, mostlyPolluting gasMarsh hydrocarbonCoal mine productSwamp gas, essentiallyA greenhouse gasHydrocarbon used as fuel.Firedamp.Dangerous mine gas.Marsh gas, essentiallyMarsh gas constituentNatural gas constituentDangerous buildup in a mineCoal miner's concernFlammable gas represented in 18-Across and 9-DownDairy farm productGreenhouse gas produced by cowsCH4 (natural gas)Type of gasFlammable gasFuel gasMarsh emanationFiredamp, for the most partCarbureted hydrogen, more familiarly