They are all in Europe.
You mean: "What continent is Germany on?" and the answer is Europe.
Germany is on the European continent. Your answer would be 'Europe'.
Germany belongs to the continent of Europe.
Germany is on the continent of Europe.
Germany is in the continent of Europe.
The continent is Europe. The country is Germany. The region of Germany is Bavaria.
Germany is located in the NW part of the continent of Europe.
Berlin is a city in Germany, which is on the European continent.
Germany is located in Europe.
No Germany is in the continent of Europe. Asia is a separate continent, and it is a long way from Germany.
They are all in Europe.