Aarit's Know Your World Crossword!

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Across
  1. 2. The largest known animal in the world
  2. 4. Biggest planet in the solar system
  3. 5. Highest mountain in the world
  4. 7. Highest waterfall in the world
  5. 9. Deepest point on earth
  6. 10. Longest river in the world
Down
  1. 1. The fastest bird
  2. 3. Fastest land animal
  3. 6. Worlds largest active volcano
  4. 8. Tallest building in the world