The correct answers are: many business closings
slow economic growth
The increase in working hours was decreed without salary increase, which motivated the uprising, finally the government increased wages without changing the working day but that limited the productivity of the companies. The economy was very affected.
The reasons to oppose slavery were morality, and the hash treatment of slaves
The Big Four or The Four Nations refer to the four top Allied powers and their leaders who met at the Paris Peace Conference in January 1919. The Big Four is also known as the Council of Four. It was composed of Woodrow Wilson of the United States, David Lloyd George of Britain, Vittorio Emanuele Orlando of Italy, and Georges Clemenceau of France.