Topographic Features Puzzle

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Across
  1. 2. Located in North America
  2. 3. Can get down to 0 degrees Celsius in the night
  3. 6. Largest forest in the world
  4. 7. Span across 5 different countries
  5. 9. Sea that separates Europe and Africa
Down
  1. 1. Largest area or plain in the world
  2. 4. Located in central Africa
  3. 5. Hottest desert in the world
  4. 8. Largest River in the world
  5. 10. Millions of years old, located in Europe