Corn!

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Across
  1. 2. you know everything
  2. 3. make people want to buy something
  3. 5. most agriculture in United States
  4. 6. popular yellow plant
  5. 8. state with highest corn production in United States
  6. 10. farm animals
  7. 11. bread comes from
  8. 12. someone who buys things
Down
  1. 1. make something bigger
  2. 4. farming
  3. 7. another word for business
  4. 9. make something popular