GK

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Across
  1. 2. Chemical symbol for water
  2. 5. The longest river in the world
  3. 7. National language of Brazil
  4. 11. Country famous for pyramids and pharaohs
  5. 12. The largest mammal on earth
  6. 13. The process by which plants make food using sunlight
  7. 17. Instrument with black and white keys
  8. 18. Fastest land animal
  9. 19. Largest continent by land area
  10. 21. Capital of Australia
Down
  1. 1. Natural satellite of Earth
  2. 3. Ancient city famous for its Colosseum
  3. 4. The largest planet in the solar system
  4. 6. The tallest mountain in the world
  5. 8. The author of “Harry Potter” series
  6. 9. Device for viewing distant objects
  7. 10. The gas humans exhale
  8. 14. Author of “Romeo and Juliet”
  9. 15. The largest desert on Earth
  10. 16. Country known for sushi and samurai
  11. 20. Capital city known as the “City of Lights”