Across
- 3. instructions
- 4. synonym of well-being
- 5. trustworthy, valid
- 10. ... is not a natural state for animals.
- 11. money
- 17. the process of dying out
- 18. to complain about something
- 19. financial support
- 20. RESEARCH investigation
- 21. eperimentation on animals
Down
- 1. to fail to understand how large or great something is
- 2. a deep and accurate understanding of something
- 6. tests
- 7. Animals' natural .... is greatly threatened by pollution.
- 8. the fact of not having something
- 9. strong and reliable
- 12. to reach a point of highest development
- 13. to identify with great accuracy or precision
- 14. to create or produce something
- 15. White lions are .... animals.
- 16. detailed examination to get more information