Can someone help me , i obviously don’t know this

What is the name of the first president

How did the technology of the late 1800s affect the growth of cities? select one: a. cities were able to expand outward because of additions to railroads. b. electric streetcars enabled the wealthy city dwellers to move to the first suburbs. c. advances in steel and metal technology allowed for the development of the skyscraper, which allowed cities to grow upwards. d. all of these are correct.

What was a common theme of folk and rock music created by the 1960s counterculture? a.nonviolence b.hate c.self-denial d.aggression