What geographical feature historically marked the southern frontier of ancient Upper Egypt where natural granite bedrock created river rapids?
Answer and explanation
Correct answer: C. The First Cataract of the Nile at Aswan
- Step 1: The First Cataract, located just south of Aswan around Elephantine Island, consists of granitic rock shoals and rapids that impeded river navigation.
- Step 2: It served as the natural southern geographic and political boundary of ancient Pharaonic Egypt with Nubia.
Answer
The First Cataract of the Nile at Aswan.
Why not the others: 'The Suez Isthmus' is the land bridge connecting Africa to Asia; 'The Qattara Depression' is in the Western Desert; 'The Sinai Pass' links the Sinai desert to the Levant.
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