Answer:
yes they were but im sure they werent allowed
Explanation:
The answer is C.) parts could be replaced on a machine without replacing the entire machine
Answer:
The Dred Scott case, also known as Dred Scott v. Sanford, was a decade-long fight for freedom by a black slave named Dred Scott. The case persisted through several courts and ultimately reached the U.S. Supreme Court, whose decision incensed abolitionists, gave momentum to the anti-slavery movement and served as a stepping stone to the Civil War.
Explain how new inventions and innovations changed Americans' lives
there were two technological innovations that profoundly changed daily life in the 19th century: steam power and electricity. The railroad helped expand the U.S.. The telegraph, the telephone, and the typewriter brought people together that were far away.
hope that hint helped ❤
<span>Urbanization improved the quality of life for the working, middle and elite classes. The citizens were given faster modes of travel and the inventions such as the telephone and electricity helped improve life at home and work and offered more ways to communicate with each other. Many more people moved to big cities due to more job opportunities, which were created due to more hours being available and companies incorporating new technology like electricity and assembly lines. This in turn increased the number of houses and buildings in cities. Agriculture became less important and industrial work became more important for the working class.</span>
