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Difficulty: MediumDrainage Systems: Major Rivers and Lakes of Africa

Arrange the following geographic features and locations along the course of the Nile River in sequential order from its source region in Equatorial Africa to its terminus at the Mediterranean Sea.

  1. 1Lake Victoria source area in Equatorial East Africa
  2. 2The Sudd wetland basin in South Sudan
  3. 3Confluence of the White Nile and Blue Nile at Khartoum
  4. 4Lake Nasser and the Aswan High Dam in Egypt

Answer

The correct sequence from upstream (source) to downstream (mouth) is: Lake Victoria source area in Equatorial East Africa, followed by the Sudd wetland basin in South Sudan, then the confluence of the White Nile and Blue Nile at Khartoum, and finally Lake Nasser and the Aswan High Dam in Egypt.
The Nile River flows northward from the East African Plateau to the Mediterranean Sea. The correct order from source to mouth begins at Lake Victoria, moves north to the Sudd wetlands in South Sudan, continues to the junction of the White and Blue Nile rivers at Khartoum, and reaches Lake Nasser behind the Aswan High Dam in lower Egypt.

Step-by-Step Solution

1
Identify the source region of the river system.
The White Nile originates in the Equatorial Lakes region around Lake Victoria in East Africa.
Rivers flow from high elevation/source headwaters toward lower elevation drainage outlets.
2
Trace the course through South Sudan.
North of the Equatorial Plateau, the river enters the flat, swampy Sudd wetland region in South Sudan.
The reduced gradient causes the river to spill into extensive wetlands before consolidating northward.
3
Locate the major confluence in Sudan.
At Khartoum (capital of Sudan), the White Nile merges with its major tributary, the Blue Nile coming from Lake Tana in Ethiopia.
This merger significantly increases the total discharge of the main Nile stream.
4
Trace the river to its lower course infrastructure and outlet.
In southern Egypt, the river enters Lake Nasser behind the Aswan High Dam, subsequently flowing through Egypt into the Nile Delta and discharging into the Mediterranean Sea.
The Aswan High Dam impounds the lower course of the Nile prior to its broad delta outlet.

Key Concept

The spatial sequence and physical characteristics along the course of the Nile River basin from source to mouth.
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Topics

Drainage Systems: Major Rivers and Lakes of Africa

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