Which of the following terms is defined as the legal process of becoming a U. S. citizen?
assimilation
immigration
naturalization
adoption

How did the new working class of the industrial revolution differ from the working classes of the earlier, farm based economy?

Which of these innovations led to increased production in american factories in the early 1800s? a. the use of interchangeable parts b. the construction of canals c. the invention of the mechanical reaper d. the availability of electricity

Who did the first work in creating vaccines