What is one theory on why the cities of the mound builders, such as cahokia, disappeared

Which factor best suggests a cause for the urban problems shown in this table? (3 points) increasing discriminatory housing practices shifting population density gradients over time declining urban renewal efforts by city governments declining basic employment sector in industrial cities increasing gentrification efforts in the inner cities

Which would make the best heading for this list of notes about the migration of african-americans during the reconstruction era?

The middle east is the best association with which international traded product