Across
- 3. mass cutting down of trees
- 4. coal, natural gas are what
- 5. Fossil fuel harvested by fracking
- 8. main reason for deforestation
- 10. polyculture, crop rotation, labor intensive
- 14. heat energy from inside of earth
- 15. partial decomposition of plant remains
- 17. making a place more urban
- 19. shift to manufacturing with machines
- 20. energy from the sun
Down
- 1. resources that can be replaced
- 2. energy from water
- 5. resources that can't be replaced
- 6. most used fossilfuel
- 7. what is agriculture
- 9. main cause of air pollution
- 11. fuel made from plants and animals
- 12. reduction of damage mining has done
- 13. crack in the Earth's crust
- 16. urban areas that heat up faster
- 18. type of gas that keeps heat in atmosphere