Answer:
C
Explanation:
The Dred Scottt case increased sectional tension because he attempted to sue for citizenship, and the decision was that black men could not and would not ever be granted citizenship
Because many believed there could be gold and many other riches that were undiscovered and also wished in claiming new land for wars in case another broke out
He contributed to a writing called On the Heavens
I'm pretty sure the answer is A. Hope it helped.
Answer:
<h3>what?</h3><h3>can you translate it in English;)</h3>
