What was the affect of the Transcontinental Railroad on the United States?

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By 1880, the transcontinental railroad was transporting $50 million worth of freight each year. In addition to transporting western food crops and raw materials to East Coast markets and manufactured goods from East Coast cities to the West Coast, the railroad also facilitated international trade.

Explanation:

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i think the answer is the one about environmental and social health.

hope this

we need the map to answer the question