What physical feature separated cultural groups from each other in the balkans?

Mountains.  

Explanation:

Balkanization refers to the fragmentation of ethnic societies caused partly by the compartmentalization created by the mountainous geography.

That´s why ethnic diversity is the main social and political characteristic in this area. The Balkan nations emerged from many diverse ethnic roots from previous indigenous civilizations.

i believe it is the second one.   if correct plz mark brainliest.

the wants of children today than in colonial times are very different. as well as the roles. children now have electronics such as phones, tablets, tvs, etc. back then, kids didn’t have electronics. in the colonial times, children were expected to their parents in their work. but now, children are expected to go to school.

hope i

-lavira : )