The correct answer is B.
The development of cheap iron in the US was the major factor that lead to the building of skyscrapers. Being able to produce iron cheaply can be contributed to Andrew Carnegie. This American business mogul perfected the Bessemer process in several factories across the eastern part of the US. From there, he was able to sell cheap iron to American businesses for the purpose of growing their empire.
Q1: defense spending was decreased as tensions between the united states and the soviet union lessened
Q2: A global surge of organic and sustainable agriculture
Q3: religion
Q4: provide a committee to focus on basic human rights and freedoms
Q5: This was the acronym for political talks between the united states and the ussr regarding nuclear weapons
Q6: Enhance social programs to better the lives of Chinese citizens
Q7: Poland east Germany and the soviet Union
Q8: a lack of history and experience with self-government
Q9: the formation of NATO
Q10: the nuclear disaster at the Chernobyl destroyed the confidence of the people
Q11: strategic limitation of nuclear arms
Answer:
Constitution is the answer
