France, Spain and Greece are not examples of countries where the North and the South differ greatly: they have all experienced economic problems recently, but this was not specific to the Southern areas of their countries. .
The correct answer is Italy: there is a big difference between the North and the South of Italy, including a cultural difference.
Answer:
They have a shared economy.
They allow easy migration
Just name 3 things that aren’t living, like rocks, etc in your local area!! I hope that makes you understand! ^-^