Respuesta :
The correct option is D. The Sahara Desert is a natural barrier that formed on the southern border of the roman empire.
What protected the borders of the Roman Empire?
The Roman Empire had a system of boundary fortifications called limes. A road or path, a boundary line or marker, any channel, such as a stream channel, or any distinction or difference between two things are all definitions of the Latin word "limes," which also had other meanings.
The Saharan and Arabian deserts, which served as the empire's southern borders during its height, served as a physical barrier to restrain its growth. The mountains across the Mediterranean were under the Empire's jurisdiction.
Thus, The right answer is D. On the southern edge of the Roman Empire, the Sahara Desert developed as a natural barrier.
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