Throughout its history, millions of people have immigrated to America. List four reasons given by people who have left their homeland and settled in the U. S.

these conditions long with a short growing season made farming difficult.

explanation:

the north has a climate of warm summers and snowy cold winters. the terrain is rocky, hilly, and not good for farming.

which time period is this? or is this story fictional, i'm going to need more info to answer this question