Across
- 5. Northwest African region
- 8. Southeast European region
- 9. Southeast Asian landmass
- 11. African tectonic region
- 13. Asian part of Turkey
- 15. Small Pacific island region
- 18. Caribbean island chain
- 19. Central North American grasslands
- 21. Northern European region
- 22. Black-Caspian mountain region
- 23. Tigris-Euphrates region
- 25. Australian interior region
Down
- 1. African semi-arid belt
- 2. Estonia Latvia Lithuania region
- 3. Island sea region
- 4. Early agriculture zone
- 6. Belgium Netherlands Luxembourg region
- 7. Mexican peninsula
- 10. Central Pacific island region
- 12. Southeast Asian peninsula
- 14. South American grasslands
- 16. Southwest Pacific island group
- 17. Spain and Portugal peninsula
- 20. Eastern Mediterranean region
- 24. Southern South America