Across
- 2. resources that are not renewed as quickly as we use them
- 3. relating to or produced by the internal heat of the earth
- 4. the release of gas into the athmosphere
- 7. liquid fossil fual energy source that produces electricity and heat as methane
- 8. liquid and solid energy sources formed fromwarmed long-dead life
- 10. energy from the water
- 12. the action or process of causing so much damage to something that it no longer exists or cannot be repaired
- 13. renewable energy produced by living organisms
- 16. chemic formule is CH4
- 17. energy resources that are not depleted when used
- 18. energy resources that are not readily replaced and depleted when used
- 20. he complex of physical, chemical, and biotic factors
- 21. energy sorucce that pruduces from electricity form moving air
Down
- 1. energy source that produceselectricity from life, sich as corn and wood
- 5. energy from the sun
- 6. rising athmospheric temperatures caused by the release of greenhouse gases
- 9. energy from the the wind
- 11. pullution chemical releades into the enviroment when fossil fuels are burnt
- 14. action or state of making or being made impure by polluting or poisoning
- 15. another name for global warming
- 19. the envelope of gases surrounding the earth or another planet