Answer:
Immigrants from Southern Europe were motivated by economic opportunities in the US and while the people immigrating from Eastern Europe left the continent due to religious persecutions.
Step-by-step explanation:
The "Southern and Eastern Europe" immigration was also motivated by political and social inequalities, bad economy, famines and they got contractual work employment from the recruitment agencies.
They worked in mines, steel mills, textile mills and many more. The "Northern and Western Europe" immigrated after the great depression.
Decline in agriculture and labor due to industry services such as motorization, chemical and others were some of the reasons that caused the great depression.