Geography and history Crossword

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Across
  1. 2. Longest north to south country
  2. 3. Oldest Flag in the world
  3. 7. Largest Empire In History
  4. 8. oldest country in Europe
Down
  1. 1. Type of Plateau found in US
  2. 4. Highest Mountain in world
  3. 5. Largest Species of tree
  4. 6. Most Populated Continent