Can some one answer 1-3 for me plz I will mark brainliest

Were african-americans allowed to serve in the military in wwi?

How did the cleveland massacre impact standard oil in 1872? standard oil hired all the laborers who were nearly killed during the cleveland massacre. standard oil became a monopoly in the cleveland oil market after the cleveland massacre. standard oil was bought out by other companies in the city after the cleveland massacre. standard oil closed down to avoid additional violence in the wake of the cleveland massacre.

In what way does the structure of county and city governments differ? a only city governments provide a law enforcement supposed to be only county gomez revival law enforcement protection see only county governments are able to cast votes per state offices the mirrors usually lead sitting on a maxwell commissioners lead counties