Select all that apply.
which of the following contributed to the decline of muslim rule on the iberian peninsula?
internal problems
unification among islam in northern africa and western europe
catholicism in the northern area remained
civil wars
the reformation movement in western europe

- internal problems

- Catholicism in the northern area remained

Explanation:

The Muslim rule on the Iberian Peninsula lasted for several centuries. One of the big problems for maintaining the rule over the peninsula was that it was never actually conquered in its entirety. There was a small but strong kingdom in the northern part of the peninsula, which was preserving the Christian faith and was also giving hope to the conquered areas. The Cordoba Caliphate didn't lasted long, and because of internal problems it fragmented into smaller kingdoms. This gave an opportunity tot he Christians, so they started attacking the small kingdoms one by one in order to free themselves and kick out the Muslim invaders, and in a very short space of time that did so.

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).