Which of the folliwing is NOT an example of internal migration

i want to say death; parole, probation, and fines are still being used all the time.

what organizations did you select

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.