Across
- 3. Total greenhouse gases produced by human activities
- 4. Energy resource formed from ancient plants and animals
- 9. Energy produced from organic materials
- 13. Technology used to store electricity for later use
- 17. Resource that forms slowly and cannot be replaced quickly
- 18. Energy source that can naturally replenish over time
- 19. Amount of energy available for use
- 22. Precipitation made acidic by atmospheric pollution
- 24. Facility where electricity is produced
- 25. Energy produced by moving air
- 26. Structure that generates electricity from flowing water
- 29. System that uses sunlight to produce heat
- 30. Gas that traps heat in the atmosphere
- 31. Responsible use and protection of natural resources
- 32. Movement of carbon through the atmosphere land and water
- 33. Device that converts sunlight into electricity
Down
- 1. Contamination of the atmosphere by harmful substances
- 2. Fossil fuel formed from compressed plant material
- 5. Amount of energy required by consumers
- 6. Electricity generated from moving water
- 7. Machine that converts wind into electrical power
- 8. Fuel produced from living or recently living organisms
- 10. Energy captured from sunlight
- 11. Energy generated from ocean tides
- 12. Fossil fuel composed mainly of methane
- 14. Energy derived from heat inside the Earth
- 15. Network that delivers electricity to consumers
- 16. Long term changes in global temperature and weather patterns
- 20. Liquid fossil fuel used to produce gasoline and other products
- 21. Alcohol based fuel often made from corn or sugar crops
- 23. Device that converts sunlight directly into electricity
- 27. Using resources in a way that does not deplete them
- 28. Device that converts mechanical energy into electricity