Greek and latin roots March

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Across
  1. 4. chron-, time
  2. 6. Gel-, icy cold
  3. 8. Cast-, pure
  4. 10. grav-, heavy
  5. 11. Dia- through
  6. 13. Glaci-, ice
  7. 15. clar-, clear
Down
  1. 1. Circum-, around
  2. 2. bio-, life
  3. 3. Aer-, air/atmosphere
  4. 5. Bon-, good
  5. 7. Cardi-, relating to the heart
  6. 9. ampl-, abundant/ample
  7. 12. fall-, deceive
  8. 14. dynam-, power