4. What major industries did the
U. S. involve itself in, in Latin
American nations?

US companies gained control of copper mining industry in Chile and Peru. They dominated the oil industry in Mexico, Peru, and Bolivia. Profits form US businesses often used to keep ruthless dictators in power.

Explanation:

where is thing if you show me on the map or have a map i can answer your question

for hobos it was a very hard time most hid on the sides of the railroad tracks causing people to get bulls and get them off sometimes causing in fatal death they couldnt get people to give them money because the   people were also in need of money