Why is this here

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Across
  1. 1. A household cleaning tool
  2. 3. Underground foundations
  3. 5. A web browser
  4. 7. An era of which Pangea began separating
  5. 11. An area in Iraq
  6. 12. A thing that takes shape of mathematical rules
  7. 14. Viruses which eat or disable bacteria
  8. 18. Leave the main point shortly
  9. 19. To remember
  10. 21. A noun which represents work
  11. 23. A government where few run the country, usually chosen since of their wealth
  12. 26. To leave the area
  13. 28. Lack of sugar
  14. 31. A human cell which eats bacteria
  15. 34. A place where scientists conduct experiments
Down
  1. 2. Of one shape
  2. 4. Final warning
  3. 6. A birth condition involving red blood cells
  4. 8. To explain
  5. 9. A state of isolation
  6. 10. Sugar from fruits
  7. 13. A place to commemorate
  8. 15. The one before last
  9. 16. Movement to a goal, usually
  10. 17. A person suffering from a mental disorder
  11. 20. An empty place
  12. 22. A book after the original
  13. 24. To change shape of something
  14. 25. A break from something(yay)
  15. 27. An area where politicians congress
  16. 29. Sugar from milk
  17. 30. Where you store information
  18. 32. To work together
  19. 33. Break down information