Question

What physical features which lies between two large bodies of water is the northern border to the Muslim Empire

Answer 1

Umayyad Caliphate spread east into Persia and west across North Africa Arab Muslims were put in the Capital of Arab Empire during Umayyad Dynasty.

Answer 2

The physical features are refered to the Caucasus mountains, where you can find the Mount Elbrus, considered the highest mountain in Europe (15.554 ft).

Step-by-step explanation:

The two large bodies of water were the Caspian Sea and the Black sea. The northern border to the Muslim Empire is nowadays known as Georgia.