Question

what was the southern boundary of the roman empire​

Answer 1

Answer:

At the greatest extent of the Empire, the southern border lay along the deserts of Arabia in the Middle East and the Sahara in North Africa, which represented a natural barrier against expansion. The Empire controlled the Mediterranean shores and the mountain ranges further inland.

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Answer 2

Answer:

along the deserts of Arabia in the middle East and the Sahara in the North Africa.