Besides connecting the eastern united states with the western united states, the transcontinental railroad was also instrumental in a) driving a gap through the confederate territories. b) bringing in immigrants from ireland and china. eliminate c) getting california admitted as a state. d) ending the reconstruction era.

B.) bringing in immigrants from Ireland and China.

Explanation:

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."

the western roman empire flourished, but the eastern portion of the empire struggled.