What was a result of the Louisiana Purchase? a)The land owned by Great Britain doubled in size.
b)The land owned by the United States doubled in size.
c)The land owned by Spain doubled in size.
d)The land owned by France doubled in size.

The land owned by the US doubled in size.

the answer is b. osage.

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).