Across
- 3. sequence
- 6. find
- 7. happen
- 8. change
- 15. synthetic
- 16. identical
- 17. single
- 18. powerful
- 19. alien
- 21. root
Down
- 1. varied
- 2. carried out
- 4. problem
- 5. chat
- 9. specialists
- 10. confused
- 11. belief
- 12. vital
- 13. called
- 14. deadly
- 19. additional
- 20. move