What agency is not an example of expansion of the power of the federal ? government during world war 1
a. the railroad administration
b. the food administration
c. the american civil liberties union
d. the war industries board

The service industry in the united states grew in the late 1800s. what was one effect of that growth? the number of people with jobs in factories as unskilled workers decreased. the number of people with jobs in factories as unskilled workers increased. the middle class grew as people took jobs as clerks, lawyers, and teachers. the middle class shrank as people left jobs as clerks, lawyers, and teachers.