Across
- 3. material used to make aluminum
- 4. a period of violent and political change
- 7. cold land
- 9. transfer of plants and animals between places
- 10. volcanoes that can erupt but don't show active
- 14. more than needed
- 16. think that lowers trade barriers
- 17. narrow piece of land
- 19. where one nation takes over a area
- 21. conquerors
- 22. money sent back to homeland
Down
- 1. large farms with poorly payed workers
- 2. crops sold for profit
- 5. hot land
- 6. no longer able to erupt
- 8. form of music
- 11. large painting
- 12. military strongman
- 13. reliance
- 15. foods ate regularly
- 18. temperate land
- 20. factory that just puts part together