Answer:
The expansion of railways meant manufacturers could ship goods cheaply.
The building of the railroads changed the environment of the West.
Explanation:
The construction of railroads in the early nineteenth century is considered a landmark in the history of the country's economic development. The creation and expansion of railways allowed goods to flow to places of greater distance, opening up new consumer markets, which favored the expansion of the economy. At the same time, there was a reduction effect on the transportation cost, a variable that has a great weight in the final price of the products, impacting their competitiveness.
Of course, the expansion of the railroads affected everyone. In the case of insiders, the impact was negative, forcing them to move around and change their social life patterns. From an economic perspective, the expansion of railroads dramatically altered the landscape and the environment of the country and the West as a whole, since the US took a big step to emerge as an economic power.