What factors led to increased immigration in the late 1800s (why did immigrants to come to the us)? what was their life like when they arrived?

During world war 2 mexican workers came to the united states as part of the

Germany italy and japan formed the tripartite pact in part because they: a. add chicken wings to the united states to stay out of world war ii b. share the ruling philosophies based on communist economics c. resented the agreements they were forced to sign at the munich conference d. selena territories were threatened by aggressive foreign states

How did the actions of tsar nicholas 2 and his wife lead to revolution in russia