"a. Most Americans still lived on farms, even though cities were booming" and "<span>b. Thousands of children worked from sunup to sundown—and a few people began to pay attention" </span>would both be correct. This is what led to the unions.
He made many contributions to physics and chemistry, especially in the fields of discovering electrolysis & diamagnetism.
FDR got us through the great depression and world war II
He humanized the american industrial system
He was a major transformative leader
He gave us social security
The answer to that would be A. Criticism of traditional authority.
Us victory in the mexican american war in 1848
