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Topic Lithosphere
Asked 4 times across 3 UPSC exams over 11 years (2014–2025), peaking in 2021.
Key insights
- Most tested in NDA — 2 of 4 PYQs
- Most asked in 2021
- Recurs across 3 years (2014–2025)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CDS 2014 → NDA 2021 → CISF 2025
How the concept evolved
Rising — more than half its appearances (3 of 4) are since 2016.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CISF2025
Which of the following statements with reference to the evolution of the Lithosphere is/are correct ?
- Due to the gradual increase in density, the temperature inside the Earth had increased
- In the process of evolution, the material inside the Earth started getting separated depending upon their densities. Select the answer
using the code given below :
- A 1 only
- B 2 only
- C Both 1 and 2 ✓
- D Neither 1 nor 2
✓ Correct answer: (C)
Geography › Geomorphology
NDA2021
Which one of the following best describes the Lithosphere ?
- A Upper and lower mantle
- B Crust and core
- C Crust and upper mantle ✓
- D Lower mantle and core
✓ Correct answer: (C)
Geography › Geomorphology
NDA2021
The maximum depth of Lithosphere is found in the
- A Pacific Ocean.
- B Siberian Plain.
- C Patagonian Desert.
- D Himalayan Mountains. ✓
✓ Correct answer: (D)
Geography › Geomorphology
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