Which of these factors cause early societies to shift from hunting and gathering to farming and herding a. the creation of the first powerful navies b. the exctin of many animals specias c. the development of stone tools and weapons d. the invention of the first steel tools

Which statement best describes a significant cause of world war ii? o a. the economic boom that followed world war i allowed countries to build up huge militaries. o b. the treaty of versailles, which ended world war i, left lasting resentments in many countries. o c. the rise of imperial states in asia caused european powers to unite for their common defense. o d. the league of nations encouraged european states to form secret military alliances.