I would say appeal based on logic. I'm not entirely sure, but that's what makes the most sense to me :)
Answer:
d
f
d
idk (depends on where you live)
f
d
Answer:
Yes
Explanation:
You got it right because you saw the evidence of it.
It would be "Whether a new state or territory should enter the Union as Free or Slave" that had the most impact on the Civil War, since the North was strongly against the spread of slavery, while the South was in favor of it.