How was northern society different from southern society before the civil war?

the south had slavery and the north had ended slavery.

The differences were economic and social

Northern society was prosperous while southern was mostly middle class. North was industrial and the economic realization was almost dependent upon factories while on the other hand most of the southern society was dependent upon agriculture. Similarly to overcome the agricultural handwork, southern society had slaves while northern society did not have slaves.

the option which was not a function of missionaries in the northwest was the first one - they established posts for trading furs and other goods.

missionaries were sent around the world to spread religion and their knowledge and others - they were not merchants who sold furs and other goods.