Which of these four charateristics is not related to how many people there are but just that there are some within it's borders?

c-flooding of the area and the development of wetlands.

tell me if im wrong.

what organizations did you select

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; caravan;