<span>Conflict and ethnic persecution forced natives/people from the Balkans to flee their homelands.</span>
Proximity means close to you. For example A few yards. Its proximity to the sun in its passage near that body.
It had smaller population around 2 million
In terms of individual states, the answer would be New Jersey. Otherwise, the REGION that is most densely populated is the east coast, specifically the Northeastern part of the U.S.
Hope this helps!