The answer is D. North Africa
Answer: Slavery in the Western Territories. To many nineteenth century Americans, the expansion of slavery into Western territories caused a great deal of controversy. ... The federal government, hoping to prevent a civil war, temporarily resolved the issue with compromises.
Explanation:
The way that camels help increase trade across geographic barriers of northern Africa is : Camels helped with transportation.
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then, we still have not developed machine based transportation
vehicles, so we rely on ships and carts. Since the horses are unable to
cross pass the desert, most of the animals that is used on northern
Africa trade were camels.
Prohibition was the prevention of manufacture and sale of alcohol
