The answer to your second question is D.) Welfare
Plessy v. Ferguson established "Separate But Equal". I wrote an entire research paper on this topic.
Answer: The printing press was also a factor in the establishment of a community of scientists who could easily communicate their discoveries through widely disseminated scholarly journals, helping to bring on the scientific revolution. Because of the printing press, authorship became more meaningful and profitable.
Explanation: Hopefully this helps you.
The correct answer for this question is this one: "B) widespread use of public transportation." Prior to WWII, people living in cities in the United States enjoyed widespread use of public transportation.
Here are the following choices:A) a housing boom.
B) widespread use of public transportation.
C) increasing quality of public housing.
D) improving air quality.
