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Topic Glaciation
Asked 2 times across 2 UPSC exams over 35 years (1990–2025), peaking in 1990.
Key insights
- Most tested in CSE — 1 of 2 PYQs
- Most asked in 1990
- Recurs across 2 years (1990–2025)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 1990 → CDS 2025
How the concept evolved
Long-running — most appearances (1 of 2) predate 2016, and it still returns.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CDS2025
Which of the following statements with reference to Glacial trough are correct ?
- Alpine glaciers strip valleys of their soil, regolith and sediment to form glacial troughs
- When the sea level is below the floor of a glacial trough, the seawater enters as the ice front recedes, creating a fiord. Select the answer
using the code given below :
- A 1 only
- B 2 only
- C Both 1 and 2
- D Neither 1 nor 2
Answer key not yet available (pending official release)
Geography › Geomorphology
CSE1990
Eskers and Drumlins are features, formed by
- A Running water
- B Underground water
- C The action of wind
- D Glacial action ✓
✓ Correct answer: (D)
Geography › Geomorphology
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