Point out the causes of frequent change of constitution in Nepal. ( 4 points )

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; early greeks were econimically stagnant and cut off from other near eastern civilizations;

answer; blank(1); /// the sea; blank (2); / a forest of pines;