Unleaded Gasoline - This fuel consists mostly of hydrocarbons and is sometimes enhanced with benzene to increase octane ratings and is used as fuel in internal combustion engines.
Flexible Fuel Vehicle (FFV): Vehicles that can use a combination of fuels such as alcohol fuel and unleaded gasoline. Fly Ash: Air-borne solid particles that result from the burning of coal and other solid fuel.
Flexible Fuel Vehicle - vehicles that can use either alcohol fuels (methanol or ethanol) or a combination of alcohol fuel and unleaded gasoline ...
See also: Smog, Ozone layer, Catalytic converter, Absorption, CFCs
 
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