Answer:
Samuel Slater copied a design for a windmill from a british model and it increased the time that cotton thread could be spun into yarn. This was the thing that first started the industrial revolution in the US.
The answer is C. slaves should not be included when counting a state’s population to determine representation in Congress -Apex
B. reduced the national debt by cutting government spending
Jefferson was a Democratic-Republican and believed in states' rights and a small federal government.
To keep the power of the federal government small, Jefferson cut spending. In doing this, he was able to reduced the government debt from the Revolutionary War without raising taxes on the people. Jefferson also cut the size of the military because he believed it was not a power the federal government should hold.
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.