Answer:
Economy
Explanation:
Higher prices for commodities
<span>Empires were destroyed,
Millions were killed,
The world was upended in a war meant to end all others.</span>
<span>Westward Expansion and the American Civil War. To many nineteenth century Americans, the expansion of slavery into Western territories caused a great deal of controversy. ... These fears were realized when the expansion of slavery into western territories entered Congressional debates</span>
