USA HISTORY

Detailed explanation-1: -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.

Detailed explanation-2: -The completion of the first transcontinental railroad revolutionized travel, connecting areas of the Western United States with the East. Prior to its completion, traveling to the West Coast from the East required months of dangerous overland travel or an arduous trip by boat around the southern tip of South America.

Detailed explanation-3: -What obstacle limited production for the Central Pacific? Even though they had a two-year head start, the Sierra Nevada Mountains limited the Central Pacifics construction in 1867.

Detailed explanation-4: -The transcontinental railroad impacted U.S. commerce in a positive manner. It made it much faster to ship raw materials from the west to factories in the east. It also made it much quicker and cheaper to ship finished goods all over the country. Products became more widely available.