played a significant role in the construction of the Central Pacific track of the Transcontinental Railroad, while Response area played a significant role in the construction the Union Pacific track.

Answer 1

The Central Pacific Railroad was primarily constructed by Asian laborers, particularly Chinese immigrants, who played a crucial role in building the western segment of the Transcontinental Railroad. The Union Pacific Railroad, on the other hand, was largely built by Irish immigrants and other labor groups. Both tracks were vital for completing the first transcontinental rail line in the United States, which united the eastern and western parts of the country and facilitated transportation and commerce.

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