How were americans influenced by the growth of railroads during the second industrial revolution

Which man believed that african americans should actively fight for the rights they deserve, even if they put their lives in danger?

Why were presidents andrew jackson and martin van buren unwilling to annex texas? a. they did not want texas to be admitted to the union as a slave state. b. they feared that the annexation of texas as a slave state would lead to political problems within the union. c. they thought that texas was too large to be admitted to the union as one state. d. they did not believe in the idea of manifest destiny.

Which agency is under the authority of the department of labor? sec osha epa fda