Most of the northern boundary is formed by the Alps. However, on the Iberian Peninsula, the Pyrenees form another northern border of Southern Europe.
Carpathian Mountain
Carpathian MountainsThe Carpathian Mountains.
The Alps mountain range divides the colder, wetter part of northern Europe from the sunnier southern part.
The Pyrenees and the Alps could be the answer.
The Arctic Ocean is the northern boundary of Europe.
The Alps
The Mediterranean Sea is the body of water that forms the southern boundary of Europe. If a person crosses the Mediterranean Sea to the south they will reach the continent of Africa.
Carpathian Mountains, but not that this answer is not entirely correct because the topograhy is more complicate.
In southern Europe
Southern - northern europe or Northern - southern europe. Basically the top of Italy.
It is in Europe and Europe is in the Northern hemisphere.
The Ural mountain range in Russia establishes the boundary between Europe and Asia.