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.
The news that the Confederates broke through the blockade and secured an alliance with England.
The Southern Africa was the region of Africa that had the most contact with the wider world before European Imperialism.
<h3>What was the European Imperialism in Africa?</h3>
The European Imperialism was when major power like French, Great Britain, Portugeuse etc dominated the African countries
The Portuguese were the first European to enter Southern Africa while finding their way around the African coast and finding a sea route to the riches of India.
In conclusion, the Southern Africa was the regions of Africa that had the most contact with the wider world before European Imperialism.
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<em>brainly.com/question/15017149</em>
Answer:
a. National Grange, to improve farmers' lives.
Explanation:
After Oliver Hudson Kelley toured the South in 1866, he and several other government clerks founded the National Grange, to improve farmers' lives.
This organization was the first major farmer organization but as time went on the organization then started interfering with social, political and economic issues in the society.
<span>The word for an array of nonaligned or friendly states that cushion or protect a larger country from invasion, as happened with the former soviet union and its eastern european neighbors is the buffer zone. It is created to specific areas that needs to be protected such as restrictions on the use of resources of that area and the country do its best to create measures to improve the conservation value of that area.</span>