Monthly crossword

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Across
  1. 2. The only U.S. state with a one-syllable name
  2. 5. The process by which plants make their own food
  3. 8. The study of word origins and history
  4. 9. The last letter of the Greek alphabet
  5. 10. The largest desert in the world outside of Antarctica
Down
  1. 1. The fear of heights
  2. 2. The only metal that is liquid at room temperature
  3. 3. The battle where Napoleon was finally defeated
  4. 4. Mythological bird that is reborn from its ashes
  5. 5. Greek mathematician known for his theorem on right triangles
  6. 6. The longest bone in the human body
  7. 7. The Capital City of Canada
  8. 11. The Greek hero who completed twelve labours