How is photography significant in law enforcement and police work

In a planned economy, which of the following does the job of market forces in order to determine the outcomes?

Which of the following is one example of an ideological conflict that became one of the causes of world war ii?

Which source would best a historian understand the effect of the great chicago fire on families? a. a biography of a chicago family displaced by the fire b. a letter from a grandmother in new york to her family in chicago c. a newspaper editorial about families who were displaced d. an oral history dictated by an adolescent who fled the fire