Civilizations that emerged in mesopotamia relied on the location's natural and mineral resources for survival, including trees, rivers, precious metals, fruits, and animals land, rivers, textiles, weapons, fish, and animals trees, rivers, fish, animals, precious metals, and desert land, rivers, fish, animals, precious metals, and mud

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.