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Once the plague became airborne, how could it then be spread?

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

Europe and asia are divided by a. the alps c. the pyrennes b. the northern european plain d. the ural mountains select the best answer from the choices provided a b c d