On what continent would u find the place with a latitude of 20 degrees north and a longitude of 0 degrees

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

Why are nation-states difficult to create?

What was one major cause of worldwide conflict during the first decade of the 21st century?