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Topic Biodiversity gradient
Asked 2 times across 2 UPSC exams over 3 years (2011–2014), peaking in 2011.
Key insights
- Most tested in CSE — 1 of 2 PYQs
- Most asked in 2011
- Recurs across 2 years (2011–2014)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 2011 → CDS 2014
How the concept evolved
Largely a pre-2016 idea — watch for a comeback.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CDS2014
Biodiversity is richer in
- A tropical regions ✓
- B polar regions
- C temperate regions
- D oceans
✓ Correct answer: (A)
Environment & Ecology › Biodiversity & Conservation
CSE2011
Consider the following statements
- Biodiversity is normally greater in the lower latitudes as compared to the higher latitudes
- Along the mountain gradients, biodiversity is normally greater in the lower altitudes as compared to the higher altitudes
Which of the statements given above is/are correct?
- A 1 only
- B 2 only
- C Both 1 and 2 ✓
- D Neither 1 nor 2
✓ Correct answer: (C)
Environment & Ecology › Biodiversity & Conservation
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