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Definition
| large organic molecules found in living systems |
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Definition
| sedimentary rock containing a material (kerogen) that can be converted to crude oil |
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Term
| compressed natural gas (CNG) |
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Definition
| natural gas condensed under high pressures (160-240 atm) and stored in metal cylinders; CNG can serve as a substitute for gasoline or diesel fuel |
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Term
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Definition
| a device for directly converting chemical energy into electrical energy by chemically combining a fuel (such as hydrogen gas) with oxygen has; does not involve combustion |
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Definition
| a vehicle that combines two or more power sources; the combination of gasoline and electric power is the most common design |
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