All of the following influence the amount of solar energy that a single point on earth receives from the sun except:
a. direction of the tilt of earth
b. varying speeds of earth's rotation
c. time of year
d. location of single point on earth

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).

the answer would be c epic   an epic is a long narrative poem about a heroic figure