<span>technological advances that lowered transportation costs dramatically</span>
Answer:
B.) The Northern economy was not threatened because of the secession of the southern states.
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Second Continental Congress. ... The Second Continental Congress was a convention of delegates from the Thirteen Colonies that started meeting in the spring of 1775 in Philadelphia, Pennsylvania.
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Extreme pro-slavery elements objected to it because it provided a precedent by which Congress had power to regulate slavery. Abolitionists opposed it because it allowed slavery to continue to spread in some of the areas.
Answer:
The American Revolution led to the creation of a democratic republic.
Explanation:
