Across
- 1. harmless
- 3. plants
- 5. point out
- 6. harmful
- 8. best
- 11. animals
- 13. use up
- 14. live longer than
- 15. the biological clock
- 16. summary
Down
- 2. relating to or providing nutrition
- 4. drink
- 7. able to be dissolved
- 9. exactly the same
- 10. change
- 12. hand in formally