UPSC CSE Prelims
Question 24
Consider the following rivers:
- Brahmani
- Nagavali
- Subarnarekha
- Vamsadhara
Which of the above rise from the Eastern Ghats?
View correct answer and explanation
Correct answer: B
Correct Option: B (2 and 4)
Explanation: The Nagavali and Vamsadhara have headwaters in the Eastern Ghats, whereas Brahmani and Subarnarekha originate in the eastern plateau/highlands outside that range.
Statement / Pair / Item-wise Analysis:
1. Incorrect / does not qualify - Brahmani is formed from Sankh and South Koel on the Chota Nagpur plateau.
2. Correct / qualifies - Nagavali originates in the Eastern Ghats uplands of Odisha.
3. Incorrect / does not qualify - Subarnarekha rises on the Chota Nagpur plateau near Ranchi.
4. Correct / qualifies - Vamsadhara originates in the Eastern Ghats of Odisha.
Option-wise Analysis:
A. Incorrect-includes item 1, which is not valid (Brahmani is formed from Sankh and South Koel on the Chota Nagpur plateau); omits valid item 4 (Vamsadhara originates in the Eastern Ghats of Odisha).
B. Correct-selects exactly the supported statements/items: 2, 4.
C. Incorrect-includes item 3, which is not valid (Subarnarekha rises on the Chota Nagpur plateau near Ranchi); omits valid item 2 (Nagavali originates in the Eastern Ghats uplands of Odisha).
D. Incorrect-includes item 1, which is not valid (Brahmani is formed from Sankh and South Koel on the Chota Nagpur plateau); includes item 3, which is not valid (Subarnarekha rises on the Chota Nagpur plateau near Ranchi); omits valid item 2 (Nagavali originates in the Eastern Ghats uplands of Odisha); omits valid item 4 (Vamsadhara originates in the Eastern Ghats of Odisha).