Keep scrolling down for answers and more stats ...
1. Is a complete geographical phenomenon / formation
2. Borders the Baltic Sea
3. Includes Mainland Sweden
4. Includes a part of Finland
5. Includes Mainland Denmark
6. Includes 3 sovereign nations
8. Includes a part of Russia
9. Has an area of around 750,000km²
10. Includes a part of Northern Germany, the state of Schleswig-Holstein..etc
11. Includes the Åland Islands
12. Has a larger surface area (Not including outside territories, like Greenland...etc)
13. Included sovereign nations has more official languages (Not including dialect, or languages spoken in outside territories)