Why was trade so important to the development of ghana, mali, & songhai?

Large igneous rock have been found on surface sedimentary bedrock in north carolina .which statement best xplains the presence of these boulders

Which of the following is an example of conflict between new england colonists and native americans? a. fundamental orders b. bacons rebellion c. english civil war d. king phillips war

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.