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Topic Atmosphere layers
Asked 2 times across 2 UPSC exams over 3 years (2023–2026), peaking in 2026.
Key insights
- Most tested in NDA — 1 of 2 PYQs
- Most asked in 2026
- Recurs across 2 years (2023–2026)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
GEO 2023 → NDA 2026
How the concept evolved
Rising — more than half its appearances (2 of 2) are since 2016.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
NDA2026
Consider the following pairs: Layers of Atmosphere / Characteristics
- Troposphere : Absorbs ultraviolet radiation
- Stratosphere : Changes in weather and climate
- Mesosphere : Reflects radio waves back to the Earth
How many of the pairs given above are correctly matched?
- A None ✓
- B One
- C Two
- D All the three
✓ Correct answer: (A)
Geography › Climatology
GEO2023
Which one of the following zones of atmosphere is the farthest from the earth surface?
- A Stratosphere
- B Mesosphere
- C Ionosphere ✓
- D Troposphere
✓ Correct answer: (C)
Geography › Climatology
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