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  1. What is the largest freshwater lake in Africa?

    What is the largest freshwater lake in Africa?

    30
  3. What country is the world's largest producer of diamonds?

    What country is the world's largest producer of diamonds?

    9
  5. Challenging History Questions

    Challenging History Questions

    1
  10. What country is known as the "Spice Island"?

    What country is known as the "Spice Island"?

    8
  11. What mountain range separates Kenya and Uganda?

    What mountain range separates Kenya and Uganda?

    18
  13. Which country is home to the Maasai Mara National Reserve?

    Which country is home to the Maasai Mara National Reserve?

    7
  14. What is the most common metal found on Earth?

    What is the most common metal found on Earth?

    11
  15. Which planet is the hottest in our solar system?

    Which planet is the hottest in our solar system?

    11
  16. What is the largest organ in the human body?

    What is the largest organ in the human body?

    11
  17. What unit is used to measure the intensity of light?

    What unit is used to measure the intensity of light?

    12
  18. What branch of zoology focuses on the study of birds?

    What branch of zoology focuses on the study of birds?

    11
  19. Who discovered the first exoplanet orbiting a sun-like star?

    Who discovered the first exoplanet orbiting a sun-like star?

    7
  20. What is the largest spider in the world by leg span?

    What is the largest spider in the world by leg span?

    9
  21. How These Discoveries Redefined Science and History

    How These Discoveries Redefined Science and History

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  24. What is the chemical formula for nitrous acid?

    What is the chemical formula for nitrous acid?

    3