This continent is Europe.
Ukraine, Romania and Norway are in Europe.
They are all in Europe.
All are European countries.
All of those countries exist exclusively on the continent of Europe.
Romania is in Europe.
There are many countries on the continent of Europe, these include... France, Belgium, Germany, Poland, Italy, Spain, Romania, Switzerland, Denmark, Ukraine, Norway, Sweden and Finland. There are also islands, including Greenland, Iceland, Ireland and Britain which are included in the continent of Europe.
Norway is in Europe.
Norway is in the continent of Europe. Continents contain countries, not the other way around.
Romania is not in any country. Romania is itself a country. It is in the continent of Europe.
Europe
Norway is located on the continent of Europe. Norway is in Europe in the region of Scandinavia. Norway makes up the western part of the Scandinavian Peninsula, which is also comprised of Sweden and Denmark. See related link.