Topic Ecotone
Asked 5 times across 3 UPSC exams over 6 years (2020–2026), peaking in 2024.
Key insights
- Most tested in GEO — 3 of 5 PYQs
- Most asked in 2024
- Recurs across 4 years (2020–2026)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CAPF 2020 → GEO 2021 → CISF 2024
How the concept evolved
Rising — more than half its appearances (5 of 5) are since 2016.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
GEO2026
A transition zone between two different ecological communities is known as
- A ecocline
- B ecozone
- C ecotone
- D ecotype
Answer key not yet available (pending official release)
Environment & Ecology › Ecology & Ecosystems
CISF2024
Ecotone is a
- A diversified ecosystem
- B transitional ecosystem ✓
- C transparent ecosystem
- D stagnation ecosystem
✓ Correct answer: (B)
Environment & Ecology › Ecology & Ecosystems
GEO2024
Which one among the following statements regarding Ecotone is correct ?
- A It represents a transitional region between two ecosystems. ✓
- B It represents a region which is ecologically perfect.
- C It represents a region which is ecologically barren of organisms.
- D It represents an ecosystem containing deep marine organisms.
✓ Correct answer: (A)
Environment & Ecology › Ecology & Ecosystems
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