Which group were the Ming's enemy in the north

Donald trump will plan to use his emergency powers to build the wall between the us and mexico, instead of shutting down the government again?

Poland a: nato b: warsaw pact c: not a member of either alliance

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?