In order to control water borne disease, this process was introduced to the public water systems by 1908

nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.  

labor leaders and organizations had the power to demand it.

explanation:

workers got a five-day workweek because the bcea protects and respect the rights of the employees. labor leaders and other groups demanded it.

a is your answer

have a great day

may i be brainliest?

~courtney

the answer to your question is ( syngman rhee) have a great day