- Alternative fuel
- Alternative fuels, also known non-conventional fuels, are any materials or substances that can be used as a fuel, other than conventional fuels...
- Environment of Tennessee
- The geological environment of Tennessee is as diverse as its landscapes. Politically, Tennessee is broken up into three Grand Divisions: East, Middle...
- Flexible-fuel vehicle
- A flexible-fuel vehicle (FFV) or dual-fuel vehicle (colloquially called a flex-fuel vehicle) is an alternative fuel vehicle with a internal...
- Alternative fuel vehicle
- Alternative Fuel Vehicle refers to a vehicle that runs on a fuel other than "traditional" petroleum fuels (petrol or diesel); any method of powering...
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