Across
- 2. The main problem with coal as a fuel.
- 4. What used French fry oil becomes.
- 6. A smoky burnable product found in English marshes made of decomposing plant matter.
- 8. The fuel found on top of oil deposits.
- 9. What is the main detraction of Nuclear Energy?
- 11. This energy source depends upon moving currents of air.
Down
- 1. The main problem with Solar Power?
- 3. A possible danger of solar energy battery-bank?
- 5. A chemical name for Natural Gas?
- 7. The most dangerous fuel (for people)to OBTAIN.
- 10. Another name for petroleum oil.