Explanation:
the practice of analysing and describing a complex phenomenon in terms of its simple or fundamental constituents, especially when this is said to provide a sufficient explanation.
It was the "Adamson Act" that mandated an 8 hour workday for railroad workers, since during this time in the United States most rail workers were being very mistreated by their employers--through work exploitation and low pay.
Hey You!
The answer to your question is the second option: Send all the slaves to a colony in Africa.
They thought that the emigration of Blacks to outside of the USA was the easiest solution.
And that's your answer! ^^
The opium war led to expanision of western influence in china and caused great social and economical disruption, with the wars weakening the dynastic system and paving the way for uprisings such as the boxer rebellions. and as dar es exonomical disruption, upon loosing the war china was forced to pay out 21million dollars per the treaty of nanjing. hope this helps:)