Unit 8

123456789101112131415
Across
  1. 4. a natural, unlearned behavior (n)
  2. 5. carry pollen from one flower to another (v)
  3. 7. able to change to a new environment (adj)
  4. 9. layer of gases around the earth (n)
  5. 11. the place where bees live (n)
  6. 13. study of the stars and planets (n)
  7. 15. continue living (v)
Down
  1. 1. belonging to a place, originally (adj)
  2. 2. very old (adj)
  3. 3. no one lives there (adj)
  4. 6. strange, difficult to understand (adj)
  5. 8. try (v)
  6. 10. a very small piece of something (n)
  7. 12. a gas humans need to stay alive (n)
  8. 14. pay for something (v)