矿物燃料是由动植物的遗体经过数百万年腐化而来的。
Hints:
methane
"proved reserves"
the Appalachian Mountains
Michigan
Many people think the search for cleaner energy leads only to renewable resources like sun, wind and water. But it also leads to a fossil fuel. Natural gas is considered the cleanest of the fossil fuels, the fuels created by plant and animal remains over millions of years. Burning it releases fewer…
许多人认为更清洁的能源仅限于开采阳光、水和风等可再生资源，实际上，还有一种--矿物燃料。天然气被认为是最清洁的矿物燃料。矿物燃料是由动植物的遗体经过数百万年腐化而来的。 相较于石油和煤，天然气燃烧时释放更少的污染物。由于主要成分是甲烷，天然气产生的二氧化碳仅是其他矿物燃料的一半。因此天然气有助于减少二…