Across
- 2. demand
- 3. frequency
- 5. solar
- 6. disaster
- 9. polarization
- 10. pressure
- 14. compression
- 17. minerals
- 19. access
- 20. growth
Down
- 1. density
- 4. customs
- 7. substance
- 8. material
- 11. amplitude
- 12. oil
- 13. fertility
- 15. farming
- 16. GDP
- 18. minimum