What effect did the Dust Bowl have on people who came to be called "Okies"?

i would say d tho   ctfvygbuhinjmlk

answer; collective security;

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.

answer; the intervening variable;