D. it caused people to move out of towns and cities to look for work
Nagasaki and Hiroshima were two Japanese cities that the United States dropped atomic bombs on and remain the only cities that have ever been bombed by atomic bombs.
Answer:
Sometimes slaves are prisoners of war; while in other cultures, people convicted of crimes are sold into slavery. Still other times (as in the case of early-American slaves from Africa), societies plagued with poverty, overpopulation, or technological inferiority are either forcibly taken as slaves or willingly traded to more developed nations.
Explanation:
