The correct answers are:
1. d. Arctic . . . Atlantic;
- The continent of Europe, which in essence is not even a real continent but a very big peninsula of the Eurasian continent, is surrounded by two oceans, from the western side its the Atlantic Ocean, and on the northern side is the Arctic Ocean.
2. b. ethnically homogeneous;
- Poland is one of the few countries in Europe that can be considered as ethnically homogeneous country. The term ethnically homogeneous means that the population of certain country is either totally of same descent, or it is very close to the 100% of being from the same descent, and Poland with its 97% Polish population certainly falls into this category.