Across
- 3. Energy Energy from the sun
- 5. Gases Gases that trap heat in the atmosphere
- 8. Wearing away of the earth's surface
- 9. Fuels Energy resources like coal, oil, and gas
- 12. Resource Natural resource that cannot be replenished
- 13. Energy from flowing water
- 14. Resource Natural resource that can be replenished
- 15. Organic material used for energy
- 16. Energy Energy from the wind
Down
- 1. Capable of being maintained over the long term
- 2. Footprint Total greenhouse gas emissions caused by an individual
- 4. Harvesting fish to the point where species are depleted
- 6. Process of converting waste into reusable material
- 7. Contamination of the environment
- 10. Protecting and preserving natural resources
- 11. Clearing of trees, transforming a forest into cleared land