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.
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.
Romania is not in any country. Romania is itself a country. It is in the continent of Europe.
Norway is in the continent of Europe. Continents contain countries, not the other way around.
Europe
Romania is located in the continent of 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.