- - he meant to sort out a hazard to miners
- - Gas which miners call firedamp
- - Dairy farm product
- - Coal miner's concern
- - Dangerous buildup in a mine
- - Coal mine product
- - Dangerous mine gas.
- - Cows emit a massive amount of this colorless, odorless chemical
- - Gas emitted by cows and other ruminants
- - adjust the name for a gas
- - Gas met hot article, English
- - Gas produced by cows and landfill sites
- - The main constituent of marsh gas
- - Gas commonly associated with 7
- - Maybe lower emission from flame than exhaust
- - literally mix up the name for marsh gas
- - odourless gas, ch4
- - name the mixture producing marsh-gas
- - the name could easily be marsh gas
- - men hate being badly affected by firedamp
- - He meant to manufacture gas
- - change the name of a gas
- - colourless odourless gas, the main constituent of natural gas
- - the name given to marsh-gas
- - Macbeth's query about his status, it would seem, is a gas
- - Firedamp gas
- - Swamp gas, for the most part
- - Natural gas molecule
- - Main constituent of natural gas
- - Gas formed by decomposition
- - Flammable gas, CH4
- - Swamp gas
- - Natural gas component
- - Natural gas
- - Name the cooking gas
- - Gas: average energy including couple of therms?
- - Swamp gas, essentially
- - Flammable gas represented in 18-Across and 9-Down
- - Marsh gas, essentially
- - Gas meant he has to change
- - Marsh gas, mainly
- - What arises in marsh where royal one encounters Macbeth?
- - Swamp gas, mostly
- - CH4
- - Marsh gas
- - Greenhouse gas produced by cows
- - Firedamp, for the most part
- - Marsh gas, mostly
- - Natural gas constituent
- - Marsh emanation
- - Marsh hydrocarbon
- - CH4 (natural gas)
- - Marsh gas constituent
- - Polluting gas
- - Firedamp.
- - Hydrocarbon used as fuel.
- - Biofuel option
- - A greenhouse gas
- - Colorless gas
- - Flammable gas
- - Fuel gas
- - Type of gas
- - A natural gas
- - Gas
- - It's a gas
- - Distinguished
- - Powerful greenhouse gas
- - Flammable hydrocarbon
- - change the name of a pollutant
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