Cross Mania!

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Across
  1. 3. The powerhouse of the cell
  2. 5. The capital of Malaysia
  3. 9. Second tallest building in the world
  4. 12. The largest ocean on Earth
  5. 13. World War Two started when Germany invaded __________
  6. 14. The smallest prime number
  7. 15. The author of the "Harry Potter" series
Down
  1. 1. National flower of Malaysia
  2. 2. Square root of 25
  3. 4. The longest river in the world
  4. 6. Large, orange vegetable
  5. 7. The father of Accounting
  6. 8. The largest reptile and apex predator in aquatic environments
  7. 10. Malaysia received its independence on _______
  8. 11. The study of living organisms and their interactions