Answer:
They traveled mainly on foot and did not have the proper footwear. Runaway slaves carried little to no food, and would become weak. Injury and illness was a danger on the Underground Railroad, as well as wild animals. Despite such risks and dangers, the journeys were braved by fugitives to escape from a life Slavery. So a threat.
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<span> that the Federal government aid in the construction of roads and canals to improve transportation to and from the West
</span><span>The British blockade of the coast had underscored the necessity of rapid means of internal transportation; Calhoun proposed a system of great permanent roads to encourage domestic manufacturing.</span>
(D) Colonists would have to provide living quarters to British soldiers, even in private homes.
I believe the trading relationship between Mexico, Canada, and United states would be the one that most impacted.
The existence of NAFTA allows better movement of Factors of Production between the three nations. Dissolving NAFTA would most likely increase the import/export tax between this nations and could also lead to the dissolvents of many jobs.
"Rome was built on hills which made defenses easier. The Tiber River was a source of water and the Alps protected it from the north".
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