Across
- 4. built by beavers
- 5. greatest Macedonian
- 7. made from polymers
- 11. aerates the soil, invertebrate
- 13. Serbian inventor very AC
- 14. Civil Law in France
- 15. alcohol from fermented fruit/veg
- 16. example of very hard rock
Down
- 1. Navy General
- 2. longest bone
- 3. most expensive edible commodity
- 6. a spreadable aviation insect
- 8. most spoken language
- 9. smallest country
- 10. our brain is one
- 12. cannot walk backwards