Final answer:
The border of Europe is outlined by the Atlantic Ocean, the Arctic Ocean, the Baltic Sea, the Black Sea, the Mediterranean Sea, and two prominent mountain ranges: the Ural Mountains and the Caucasus Mountains.
Step-by-step explanation:
The border of Europe, which includes 2 oceans, 3 seas, and 2 mountain ranges, is defined by the following geographical features:
- The Atlantic Ocean and the Arctic Ocean are the two oceans touching Europe's borders.
- The seas include the Baltic Sea, the Black Sea, and the Mediterranean Sea.
- The two significant mountain ranges are the Ural Mountains and the Caucasus Mountains.
The Ural Mountains are particularly notable as they form the natural boundary between Europe and Asia in Russia, commonly referred to as the dividing line between the two continents. Furthermore, the Caucasus Mountains serve a similar function, demarcating the easternmost limit of Europe by separating it from Asia in the region known as Transcaucasia.