Energy

5. an internal-combustion engine that burns heavy oil
6. to change from one form to another
9. the total carbon dioxide emissions produced by an individual, group, or location
10. the energy an object has due to its motion
11. the trapping of the sun's warmth in a planet's lower atmosphere due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.
12. the capacity to do work

1. Liquid fuel created from processed or refined biomass
2. stored energy that results from the position or shape of an object
3. The conversion of one form of energy into another, or the movement of energy from one place to another.
4. a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
7. A device used to convert mechanical energy into electrical energy.
8. A diesel substitute produced by extracting and chemically altering oil from plants