Across
- 1. abstract artistic style
- 5. graph of human population
- 6. at the same time
- 8. solid sound
- 13. free market economic system
- 17. expected type
- 18. necessary for life
- 19. to rise above
- 20. powerful
Down
- 2. excel
- 3. ego another self
- 4. study of human populations
- 7. without time
- 9. revive or bring back to live
- 10. lasting a long time
- 11. to take turns
- 12. aliveness
- 14. small objects revolving around Sun
- 15. "not known" in disguise
- 16. powerful explosion