The central figure is john brown. why does the artist depict him as such a large figure, and why is he standing between the two sides?

I wager you're talking about Tragic Prelude, the mural painted by John Steuart Curry.

To answer your question: Curry probably had Brown stand between the two sides to emphasize the increasing divide between the North and the South of the United States during this period, a divide that has only grown due to Brown's actions at Harpers Ferry.  

Curry also probably represented Brown as such a large figure to highlight his importance in the leadup to the Civil War.  He is also represented as a fanatic who would kill and be killed for his beliefs.

churchill warned that the soviet union had cut eastern europe off from the west with an "iron curtain."

give me brainliest

answer; i believe the correct answer is (favorable balance);