There were several ways in which the US government increased Mexican immigration, but the best option is "congress passed laws saying that all Latinos fleeing dictators are welcome"
Answer:
The actions of the civil right organization (eg: Martin Luther King, Black power movement etc)
Camano Island migration affected Eurasia by ruining some of the land and making more like and making the Ocean bigger
The answer is
1. The area had fertile land for farming
Probably the super unsanitary conditions. There was a book written by Upton Sinclair in 1904 about the disgusting and unsanitary conditions of meat factories. Including random and contaminated meats being grinded into sausage along with rat corpses. And employees having no washing stations, so they washed their bloody hands in the water the meat was supposed to be cleaned with.