The puzzle

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Across
  1. 2. harbor for ships
  2. 5. structure of the economy
  3. 6. how the land looks
  4. 9. width of the railroads
  5. 10. countries disagreement
  6. 12. energy caused by breakdowns
  7. 14. nuclear explosion
  8. 15. decaying
  9. 18. infected
Down
  1. 1. political party votes
  2. 3. government units
  3. 4. transport liquids
  4. 7. open speeches
  5. 8. income
  6. 11. traditional felt tent
  7. 13. groups' way of life
  8. 16. traveler
  9. 17. illegal takeover of government