Across
- 2. meets the largest energy needs
- 10. a resource the renews its self in a relatively short amount of time
- 13. to create energy from hydrogen fuel cells hydrogen must be combined with
- 15. one energy use Geo thermal cannot do
- 16. not using a lot of energy
- 17. the energy resource that is used the most
- 18. can be replenished in an extremely long time
- 19. What is coal mainly used for
- 20. what type of light bulb is more efficient
- 23. how much electricity does Niagara Falls generate
- 26. what type of energy comes from the sun
- 27. The three main energy uses are electricity transportation and
Down
- 1. what is gas mixed with alcohol
- 3. the cost of solar panels have dropped % since 2008
- 4. is often called an oil factory
- 5. geothermal power plants are only installed where the ground is colse to
- 6. solar energy is an example of a
- 7. What percent of coal is used for exports
- 8. Geothermal energy emits percent less acid rain causing sulfur
- 9. what are the three fossil fuels coal oil and
- 11. what type of energy comes from waste
- 12. compounds made from oil like paints cosmetics and plastics
- 14. how easy it is to get a energy source
- 21. what do you call the combination of atomic nuclei
- 22. power plants only emit % of carbon dioxide released by power plants
- 24. The coating inside walls to keep heat in is called
- 25. wind power only is able to use percent of the energy it generates