Pure land buddhism was particularly attractive to the japanese during the kamakura period because it offered the ability to

explanation:

may i ask what challenges?

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.