Across
- 6. a glass building in which plants are grown (P.87, line 9, book 3)
- 7. the opposite of unviable (P.91, line 15, book 3)
- 8. the dominant social system in medieval Europe (P.86, line 1, book 2)
- 9. a type of source of energy that is not depleted by use, such as wind or water (P.91, line 2, book 3)
- 11. the past form of draw
- 14. a society with a special culture and way of life in a particular area (P.83, line 8, book 3)
- 16. the sudden or violent start of something unwelcome, such as disease (P.91, line 11, book 2)
- 17. a person who designs, builds, or maintains engines (P.83, line 19, book 3)
- 18. the same as tributes (P.86, line 15, book 2)
- 19. the past participle form of take
Down
- 1. the same as disappeared (P.83, line 13, book 3)
- 2. a building devoted to the worship to a god or gods (P.83, line 11, book 3)
- 3. the infinitive form of felt
- 4. the opposite of small (P.91, line 5, book 3)
- 5. the past participle form of drive
- 9. the same as feedstock (P.91, line 26, book 3)
- 10. the past form of begin
- 12. the infinitive form of lost
- 13. a microorganism which causes disease (P.83, line 35, book 3)
- 15. the same as avoid (P.87, line 20, book 3)