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acid rain |
rain that has high acidity because of being mixed with pollutants such as vehicle exhausts and residues from burning of fossil fuels for energy or from chemical manufacturing. |
alternative energy |
any form of energy other than that which comes from fossil fuel. |
alternative energy source |
any source of energy other than fossil fuel. |
alternative fuel |
a fuel other than fossil fuel used to power an internal combustion engine. |
amber |
a hard, translucent fossil resin that will develop an electric charge when rubbed. [1/4 definitions] |
ammonite1 |
any of various coiled, flat, chambered fossil shells of extinct cephalopod mollusks from the Mesozoic era. |
fossil fuel |
any carbon-containing fuel formed from the remains of prehistoric plants and animals. Coal, petroleum, and natural gas are examples of fossil fuels. |
fossilize |
to make into a fossil by replacing organic matter with mineral substances. [2/3 definitions] |
green |
of a company or industry, producing energy-efficient or recyclable products and producing them in a way that conserves energy generated from fossil fuels while contributing little to environmental pollution. [3/17 definitions] |
index fossil |
any fossil used as a reference to correlate and date rock strata and the fossils found in them. |
-ite1 |
rock; mineral; fossil. [1/4 definitions] |
-lite |
stone, mineral, or fossil. |
Peking man |
a type of early human whose fossil remains were found near Beijing, China. |
Solo man |
a type of early human known from fossil skull remains found in Java, esp. near the Solo River. |
syngas |
a synthetic gas, produced from the combustion of fossil fuels or biomass, that contains hydrogen and can be used as a fuel. |
synthetic fuel |
a hydrocarbon fuel produced from fossil fuels such as shale, tar sands, or coal. |
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