General knowledge quiz

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Across
  1. 4. Mount Fuji is in this country
  2. 5. the largest organ of the human body
  3. 8. the Sydney Opera House is in this country
  4. 9. first African-American president of the USA
  5. 11. the longest river in Africa
Down
  1. 1. the highest mountain in Africa
  2. 2. the world's highest waterfall is in this country
  3. 3. famous president of South Africa, first name Nelson
  4. 6. the first inhabitants of New Zealand
  5. 7. the largest sea animal
  6. 10. the chemical symbol for gold