How did reformers expose the living conditions to the public?

To expose and reform corruption in politics.

Explanation:

Since 1892, Steffens worked for the New York Evening Post. He later turned into the distributer of McClure's Magazine, from where he co-built up an analytical style called muckraking, revealing corruption in the American culture, with a special accentuation in New York.  

After 1910, Steffens'reporting on corruption  bit by bit reduced. Rather, his attention was on the Mexican Revolution. He turned into a heartfelt supporter of the alleged rebels and concentrated increasingly more on the insurgency as the best way to escape capitalism.

the two things that develop a strong social foundation are: a. separation of church and states e. education received attention separation of church and states separate the illogical  argument that came from religious beliefs to a fact based belief. while education will make us remember the past to avoid the repeat of our mistakes.

a. always outside of government control.