Which of the following events resulted in the most species extinctions overall? a) Ordovician-Silurian
b) Cretaceous-Tertiary
c) End Permian
d) End Triassic

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).

doat means to cherish based on the key word fancying and that it is a living thing