When were steel ships developed?

1873
1845
1881
1838

Which best expresses the radical republican philosophy of reconstruction? a. the confederate states were conquered territories that should be ruled by military governors. b. the southern states actually never left the union. c. if ten percent of the voters of a state that had seceded took an oath of allegiance to the union, then it should be readmitted as a state.

The history of ethical regulations in human subjects research began with the: a. declaration of helsinkib. nuremburg codec. common ruled. belmont report

What are the cultural characteristics of mexico?