How do social hierarchies shape our life choices and relationships?

answer; /// representative democracy restricting trade,is your correct answer;

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.

well 1 they have there leader that controls them