Similar words: more than ever, more than, give thanks, not more than, no more than, Better late than never, lethal, see that. Meaning: ['meθeɪn /'miːθeɪn] 
n. a colorless odorless gas used as a fuel.
n. a colorless odorless gas used as a fuel. 
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1. The ignition of methane gas killed eight men.
2. In each methane molecule there are four CH bonds.
3. Methane is the main constituent of natural gas.
4. As the waste materials decompose, they produce methane gas.
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5. Methane gas does collect in the mines around here.
6. The blast was caused by pockets of methane gas that ignited.
7. The blasts were caused by pockets of methane gas that ignited.
8. Methane is one of the principal gases contributing to the greenhouse effect.
9. Microbes decompose organic waste into a mixture of methane and carbon dioxide.
10. Methane blocks the escape of heat from the atmosphere.
11. These included methane, ammonia, probably hydrogen cyanide, hydrogen sulphide and carbon monoxide.
12. The techniques of converting these wastes to methane are similar to those currently under study in the pyrolysis of biomass.
13. Methane concentrations were calculated as the difference between breath and a corresponding room air sample.
14. But the scientists were encouraged that stinky methane stabilized after 12 days.
15. Under these conditions the methane jets pushed the candle flame outside the gauze, causing explosions.
16. Breath methane was measured and viable counts and metabolic activities of methanogenic bacteria and sulphate reducing bacteria determined in faeces.
17. Life generates methane, ammonia, oxygen, hydrogen, carbon dioxide, and many other gases.
18. As levels of atmospheric carbon dioxide and methane increase, the greenhouse effect will trap increasing amounts of heat.
19. Methane production is an effective and safe pathway for H 2 disposal and occurs in most animals.
20. Methane is also given off by rice paddies and ruminant animals, including cattle.
21. That plant uses methane gas from the landfill to generate electricity.
22. Another example is the use of both urban and agricultural wastes to produce methane gas under controlled fermentation.
23. The same effect occurs in cattle, though cattle belch out surplus methane.
24. Global warming occurs when carbon dioxide and some other gases, such as methane and nitrogen oxides, accumulate in the atmosphere.
25. As household refuse decomposes, it produces an explosive gas, methane.
26. Then it is combined with hydrogen in a catalytic converter to produce methane gas and water.
27. Under these conditions, certain species of bacteria break down the waste to form methane gas.
28. Like anaerobic digestion, the aerobic processing of waste material produces methane which can be used as a biogas fuel.
29. The end product contains mainly carbon monoxide and hydrogen from the gasification step plus a little methane from the carbonisation.
30. He determined that the most explosive mixture of the purified methane and air was in the ratio of 1:8.
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