How had the population make up of the us changed

How does "marian anderson sings" differ from the informational text in organization?

How did the growth of the middle class affect social reform during the industrial revolution?

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?