Which demonstrates how the anasazi adapted to their hot dry environment

They used dry farming and flood irrigation.

If you're talking about the question in the North American Cultures quick check, the answer would be "The Anasazi moved south where more water was available." !!

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).

we have pictures for proff

they also have books