UPSC Prelims 2026 · GS Paper 1 · Question 40
Which of the following statements with reference to Lake Turkana is/are correct ? 1. It is the largest desert lake in the world. 2. The lake is situated in South Sudan along the eastern fringe of the Sahara desert. 3. The lake is listed as a UNESCO World Heritage Site and is also referred to as the 'Jade Sea'. Select the answer using the code given below :
Correct answer: Option B
Geography
Options
- (a) 1 only
- (b) 1 and 3 only
- (c) 2 and 3 only
- (d) 1, 2 and 3
Detailed solution
Answer
Option (B) — Statements 1 and 3 are correct
Explanation
- Lake Turkana is an endorheic alkaline lake located in the Kenyan Rift Valley, with its far northern end extending into Ethiopia.
- It is the world's largest permanent desert lake and the largest alkaline lake, fed mainly by the Omo, Turkwel, and Kerio rivers.
- Its waters appear turquoise due to algae, earning it the nickname 'Jade Sea', and the Lake Turkana National Parks were inscribed as a UNESCO World Heritage Site.
- The Turkana Basin is also famous as the 'Cradle of Mankind' for its rich hominid fossil discoveries.
Statement Analysis
- Statement 1. It is the largest desert lake in the world: Correct. Lake Turkana is recognized as the world's largest permanent desert lake.
- Statement 2. The lake is situated in South Sudan along the eastern fringe of the Sahara desert: Incorrect. The lake lies mainly in Kenya, with its northern tip in Ethiopia, not in South Sudan or near the Sahara.
- Statement 3. The lake is listed as a UNESCO World Heritage Site and is also referred to as the 'Jade Sea': Correct. Lake Turkana National Parks are a UNESCO site, and its jade-green colour gives it the name 'Jade Sea'.