How did copernicus work challenge the accepted view of the universe A : he believed that ptolemy’s work was completely wrong

B: he knew that the planet revolved but he did not believe they revolved around the earth

C: he wanted to prove that god created the universe and science was not involved

D: he thought that the universe had changed since ptolemy’s

What two different approaches did the knights of labor and the american federation of labor take in building a union organization? a) the knights of labor accepted only unskilled workers; the american federation of labor accepted only skilled workers. b) the knights of labor accepted skilled and unskilled workers; the american federation of labor accepted only skilled workers.c) the knights of labor refused to accept african american or chinese workers; the american federation of labor accepted all workers.d) the knights of labor accepted workers from a single industry; the american federation of labor accepted workers from several industries.