Across
- 3. to use something again more than once
- 7. energy from any material that comes from plants
- 9. Fossilized carbon
- 10. energy that is made by flowing water
- 12. produced by burning fuel for power or heat, through chemical reactions, and from leaks from industrial processes or equipment
- 15. Coal, oil natural grass
- 16. Thick black liquid
- 17. Energy that is captured by turbines
- 19. Energy from the sun
- 20. to upkeep of natural resources to prevent them from disappearing
Down
- 1. Found deep in the earth is flammable, colorless, and odorless
- 2. Biomass, solar, wind, Hydroelectric, geothermal
- 4. Heat energy from deep within the earth (manga)
- 5. Fuels are Currently the world's primary energy source
- 6. the process of making waste materials into new materials
- 8. Gasses in the earth's atmosphere that trap heat
- 11. is a renewable powered powered by the natural rise and fall of the ocean tides.
- 13. layer in the stratosphere of the earth absorbs most of the ultra radiation from the sun
- 14. to restore something
- 18. The energy generated during nuclear fission