How did many irish and german immigrants in the early 1800s contribute to the development of unite states?

a. they worked in factories and built roads and canals.
b. they replaced enslaved workers on plantation farms.
c. they provided labor for busy ports and on naval ships.
d. they were forced to moved to lands west of the mississippi.

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.