What effect did the mandate system have on national borders after World War 1?

Jackson pollock described his art style in the following quote: “new needs need new techniques.… it seems to me that the modern painter cannot express this age, the airplane, the atom bomb, the radio, in the old forms of the renaissance or of any other past culture. each age finds its own technique.” what point is pollock making about the new styles of art?

What role does an american citizen play in its own government ?

Which describes a significant different between the north and the south in the year leading up to the civil war