V and Z words

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Across
  1. 1. true
  2. 3. toward
  3. 4. the most recent geological era
  4. 5. turn
  5. 7. back
  6. 9. to prove to be true
  7. 12. one celled organisms
  8. 14. to speak the truth/a jury decision
  9. 15. animal
  10. 17. upside down
  11. 18. study of
Down
  1. 2. to go back on, turnaround
  2. 3. to turn attention toward
  3. 5. can be proven
  4. 6. to turn back
  5. 8. to make
  6. 10. a place where animals are kept
  7. 11. to turn away
  8. 12. primitive
  9. 13. hardship
  10. 16. to speak