What are the advantages and disadvantages of having two houses of congress?

Which three sentences in the story indicate that the passage is an ex nihilism type of creation story?

How did the growth of railroads american businesses expand

How did the mountains on the oregon trail influence the timing of pioneers’ travels? a.) the pioneers wanted to avoid times when there was snow in the mountains. the pioneers wanted to spend as much time as possible enjoying the mountain scenery. b.) the pioneers crossed the mountains in late fall when the trees were bare and the views were good. c.) the pioneers were rugged people who were not impacted by the terrain they crossed at any time.