The distance between two cities would most likely be measured in

yes, since there is a positive and a negetive if the positive and negitive wasn't there wouldn't a flow electricity in it.

given all the practice it takes to become proficient at writing up ncoer's, , awards, and conselings as well as learning how to become a well rounded   leader , and managing different types of people

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.

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