Scientists believe that the boundary stratum between the Cretaceous and Paleogene periods was caused by an asteroid. What evidence is most consistent with this theory?

answer; john stuart mill's principle of utility is your answer; /// good luck

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.