Whom did Steffens blame for the corruption and bad government that existed in US cities in the late 1800s

What was a major cause of world war i?

What was the main cause of the russian revolution? a. the protests against the war with poland b. the tremendous war losses of world war 1 c. the protests against the treaty of brest- litovsk d. the losses dictated by the treaty of versailles

Can someone me out with this , i'm putting 30 points on it