Development of a country is the development of the people living in the country. how?

there is no single test to determine what is a developing country. One way to rate a country's level of development is by the total value of goods and services the country produces, divided by the number of people in the country. Thus is called the gross national income (GNI) per capita.

that is alot i do not no

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.