How did the treaty of versailles change the balance of power in europe?

One argument of those who supported the gold standard system in the united states was that the gold standard

Me! these questions are based on american people in the south essential questions: question 1: for what reasons will one group of people exploit another?focus questions: question 1: what influenced the development of the south more: geography, economy, or slavery?question 2: what were the economic, political and social arguments for and againsts slavery in the first half of the 19th century.

Iwould appreciate it if someone can answer all the questions