2. How did the completion of the transcontinental railroad change the face of
America?

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. It also allowed people to travel themselves and goods quickly and cheaply.

Explanation:

during the ming dynasty