Answer:
many white Northerners feared that the abolition of slavery might jeopardize their own economic wellbeing. Poor white laborers worried that emancipated blacks would come up from the South and take their jobs.
The British Isles have experienced a long history of migration from Europe. The ancient migrations have come via two routes: along the Atlantic coast and from Germany–Scandinavia. The first settlements came in the Palaeolithic and Mesolithic periods. The earliest evidence of human presence in Ireland is dated to 10,500 BC.[1][2][3]
Research into this prehistoric settlement is controversial, with differences of opinion in many academic disciplines. There have been disputes over the sizes of the migrations and whether they were peaceful. In the latter part of the second millennium, the finds of archaeology allowed a view of the settlement pattern to be inferred from changes in artefacts. Since the 1990s the use of DNA has allowed this view to be refined.
To protect its citizens from terrorist attacks." According to John Yoo's letter, the duty that does the government have that allows it to conduct warrantless searches and seizures is to protect its citizens from terrorist attacks
The best and most correct answer among the choices provided by the question is the sixth choice. One of the reason of the decline of the empire is violence, and the best example of which is the assassination of Julius Caesar. I hope my answer has come to your help. God bless and have a nice day ahead!