All are independent countries.
basically -air -water -food -people
Rugby 15 is common in Romania.
The most important is the orthodox church. In the middle-age: the fight against the Turks invaders. Greeks have influenced the culture of the populations in Romania since antiquity (700 b. C.). The Romanian language has some words of Greek origin. Romanians and Greeks like to drink wines, to sing, to dance. Many habits and foods are common. The physical aspect of the two peoples is very similar. Romanians prefer Greece as tourist destination - more than 300 000 tourist last year.
The most common surname in Greece is Papadopoulos.
Probably nothing.
mămăligă
greece's most common export is olive oil
They are European countries and members of EU; but Romania and Poland are very different countries.
Dogs and cats
The dog is very common.
This depends on the coordinates of a point; April is a spring month in Romania but in the mountains snow is common.
Ana is an extremely common name in Romania. But this name exist also in many other countries.