Across
- 2. Mix of events that happen each day in our atmosphere
- 4. Source not depleted when used
- 7. The process in which materials are eroded in water
- 8. Used to use less energy
- 10. The variety of animals
- 13. Partly decomposed organic material that is used as fertilizer
- 15. Severe Weather
- 16. Energy that can be extracted from earth's internal heat
- 17. The increase in average temperatures of earth and the atmosphere due in part to increases carbon dioxide levels
- 19. To process used products into new products by using the materials again
- 20. Made from decomposing plants and animals
- 21. The power generated by falling water
- 22. The amount of carbon emitted from a person
- 24. A body of rock and/or sediment that holds groundwater
- 25. Long-term shifts in temperatures and weather patterns
- 26. Lightbulb needs it to light up
Down
- 1. Gases that trap heat
- 3. To use less
- 5. The term used to describe what happens when topsoil is washed or blown away
- 6. To use items again after their original use
- 9. Resources from nature
- 11. Source that runs out when used
- 12. Protecting something from harm or destruction
- 14. Renewable organic material that comes from plants and animals
- 18. Anything that can be naturally broken down and returned to the Earth
- 23. Anything that dirties the Earth