Answer:
The Northern states opposed slavery.
Explanation:
"for it was inevitable that the North, when once aroused, would bitterly resent such pro-slavery demands"
I would say suit doesn't belong.
All of the other words could be classified as verbs, and suit simply as a noun in almost any case.
<em>How it works. </em><em>A camera obscura is a dark room with a small hole in one wall in its simplest form.</em><em> When it's bright outside, light enters through the hole and projects an upside-down image of the outside world onto the wall opposite the hole.</em>