Answer:
The election of Lincoln served as the primary catalyst of the American Civil War. The United States had become increasingly divided during the 1850s over sectional disagreements, especially regarding the extension of slavery into the territories.
Explanation:
90 percent
Congressional grants provided the significant of the amount
required for the interstate highway system. This system has profoundly impacted
the American economy and contributed significantly to improved economic productivity.
The system encouraged development by making land less expensive and available
to the nation's transportation system.
In early 1942, the biggest challenge the United States faced in the Atlantic was:<span> German submarine warfare.
I hope this helps.
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They would be called a 'Geographer'