What did karl marx predict after workers were exploited year after year by the capitalist class?

According to jean-jaquees rousseau, individuals participating in a social contact agree to be ruled by

What from the columbian exchange had perhaps the biggest impact on the world?

What were three advantages the north had in the civil war? it was fighting most battles on home ground. it had a greater number of soldiers. it had more highly skilled military leaders. it had a stronger navy. it had a better network of railroads. pick three .