Which discovery caused hunter-gatherers to give up their nomadic lifestyle and settle down permanently in one place? a. agriculture b. fishing sense all the results kept saying c or d i decided to narrow the question down ok? so stop saying its both there is only 1 correct answer!

The correct answer is:

c.  agriculture

b. andrew

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).