Answer:
Many towns and cities.
Proslavery.
Industrial economy.
These are the features that describe the North in the Antebellum period (before the Civil War). During these years, the North had many towns and cities that were densely populated. These cities also had a large variety of factors, as the region relied on its industrial economy. Finally, the North was also antislavery. All of these characteristics contributed to the beginning of the Civil War.