Kodric-brown and brown wanted to explore how reducing territory quality would affect foraging behavior. they created

it teaches readers about an interesting chinese custom and causes them to determine that the minister is trying to be polite

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.