Choose the items that correctly describe an aspect of the building of the first transcontinental railroad. it crossed the rocky mountains. large number of irish immigrants were used in construction going westward. it crossed the appalachian mountains. the union pacific railroad used mostly chinese labor. the central pacific railroad built track from west to east. large numbers of japanese immigrants were used in eastward construction. construction was completed before the end of the civil war. the central pacific and union pacific railroads met at promontory point, utah, completing the project.

The items that correctly describe an aspect of the building of the First Transcontinental Railroad are:

-It crossed the Rocky Mountains.

-The Union Pacific Railroad used mostly Chinese labor.

-The Central Pacific Railroad built track from west to east.

-The Central Pacific and Union Pacific railroads met at Promontory Point, Utah, completing the project.

Explanation:

The First Transcontinental Railroad in the United States was a railroad line, built between 1863 and 1869 by the Central Pacific and Union Pacific companies, which connected Council Bluffs (Iowa) and Omaha (Nebraska) to Sacramento (California) and the Pacific Ocean in Oakland (California). Linking with the existing rail network to the east it connected, in fact, the coast of the Atlantic Ocean with the one of the Pacific for the first time with railroad. The line was popularly called Overland Route and was in service until the end of 1962. Coming into service on May 10, 1869 with the placement of the symbolic golden spike in Promontory (Utah), this route established a transcontinental mechanized transport system that revolutionized demography and the economy from the Far West of the United States.

explanation: j