Which was a difficulty the builders of the transcontinental railroad had to overcome?

Will mark brainliest to quickest answer which of the following is true about interest groups? a. always support one candidate b. not involved in elections c. may pass new laws d. ineffective in the states

Which of the following arguments decided the debate over using the atomic bomb against japan in 1945? using the bomb would destroy the armaments still available to japanese forces in japan. using the bomb would demonstrate the power of the united states to the entire world. using the bomb would shorten the war and avoid heavy casualties among invading troops. using the bomb would enable allied forces to invade and take over the japanese mainland

Select all the correct answers. what were two effects of the french revolution in france?