A key factor that pushed Mexicans to emigrate was not being able to support themselves at home, politics also affected them.
It caused them to be slaves
The factor that contributed to the delays in the construction for the Central Pacific Railroad is A. shortage of supplies.
The Central Pacific Railroad got huge political as financial support from the government of the United States where it was about to be constructed.
Despite this, the factor that contributed to the delays in the construction for the Central Pacific Railroad was the shortage of supplies. This made.it unable for the railroad to be completed on time.
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