Why do people study history? choose all answers that are correct. a. it leads to general agreement on religious questions. b. it promotes understanding of other cultures. c. it creates a new and better political system. d. it tells true stories of heroes and villains and adventures?

Before they can be published, scientific papers must be peer-reviewed. this means that: a) some other scientific experts read the papers and guarantee that they are true.b) some other scientific experts read the papers and provide quality control by eliminating many mistakes.c) an editor reads the papers, to make sure that all the semicolons are in the correct places.d) everyone in the world is given the opportunity to comment on the papers through a specially maintainedblog.e) government bureaucrats read the papers, to be sure that the papers do not insult the political positions ofthe current officeholders.