This is true because, not only did the southerners began questioning the morality of slavery and its associated trading, they also vented their angers towards the northern abolitionists. The Northerners on the other-hand, wondered why the southerners were surprised with the idea that the slaves in question would rebel from their masters.
farming, travel, but mainly farming, therefore they do a lot of fishing, it was also hard because they had a growing populace, and small amount of land