Which factor most contributed to delays in construction for the central pacific railroad? a. a shortage of supplies b. intense summer heat c. long stretches of desolate landscape d. conflicts with american indians

Which product would have been most likely to have been traded in this area at this time?

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

3. according to oliver, how can the fast food industry with the food revolution? i will give brainliest