What effect did the manor system have on cities and towns? *

yes

it is because 3 because the citizen the northern democratic party watned the warning on red to blue because it is purple. lol

rain should be the 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.