In Payne's research study involving white participants responding to whether a wrench or a gun was flashed quickly on the screen in the presence of either a white or black face also on the screen, He found that mistaking a wrench for a gun in the presence of a black face had the highest error rate. A. True
B. False

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; in england;