general knowledge 1

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Across
  1. 2. dog
  2. 5. loam
  3. 8. everest
  4. 9. mosquito
  5. 10. hummingbirdSmallestBird
  6. 13. astronaut
  7. 15. elephant
  8. 18. sevencontinents
  9. 19. nairobi
  10. 20. east
Down
  1. 1. whale
  2. 3. oxygen
  3. 4. cotton
  4. 6. penguin
  5. 7. kilimanjaro
  6. 11. dentist
  7. 12. camel
  8. 14. bank
  9. 16. primeNumber
  10. 17. net
  11. 21. sunClosestStarToEarth