Quiver, Quiver, Quiver at these Quality crossword Questions

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Across
  1. 2. An old-fashioned writing tool
  2. 3. A polynomial of degree five
  3. 5. A loose, waterlogged soil that swallows objects
  4. 7. Small marsupial known for its adorable smile
  5. 9. What happened in 2020?
  6. 10. The last imperial dynasty of China
  7. 11. What the name 'Elizabeth', a deck of cards, and New York have in common
Down
  1. 1. The result when one number is divided by another
  2. 3. Don ___; Famous book written by Cervantes with the titular knight fighting windmills. Also One Piece.
  3. 4. Fundamental particle making up protons and neutrons
  4. 5. The eternal rival of Yahoo Answers
  5. 6. Mineral made of silicon dioxide, also found in the Nether
  6. 7. To satisfy one's thirst
  7. 8. the setting of Family Guy
  8. 9. Related to 8-Down