Pure • Calm • Minimal Aesthetic
Biodiversity – Answers with Reasoning
UPSC Prelims | Concept Explanation | Page 3
1. Answer: B
Statement 1 is wrong (not all biodiversity-rich areas are hotspots). Statement 2 is correct → endemism is a key condition.
Statement 1 is wrong (not all biodiversity-rich areas are hotspots). Statement 2 is correct → endemism is a key condition.
2. Answer: B
Endemism means species restricted to a specific geographic region.
Endemism means species restricted to a specific geographic region.
3. Answer: C
National Parks have strict protection → no human activity allowed.
National Parks have strict protection → no human activity allowed.
4. Answer: B
Buffer zone allows limited and controlled human activity.
Buffer zone allows limited and controlled human activity.
5. Answer: C
National Parks are stricter than Wildlife Sanctuaries.
National Parks are stricter than Wildlife Sanctuaries.
6. Answer: C
Industrial development is not a criterion for hotspots.
Industrial development is not a criterion for hotspots.
7. Answer: B
Core, Buffer, Transition zones → Biosphere Reserve structure.
Core, Buffer, Transition zones → Biosphere Reserve structure.
8. Answer: C
Ecosystem includes interaction of living and non-living components.
Ecosystem includes interaction of living and non-living components.
9. Answer: C
Genetic diversity refers to variation within species.
Genetic diversity refers to variation within species.
10. Answer: B
Sanctuaries allow limited human activity.
Sanctuaries allow limited human activity.
11. Answer: B
Conservation reserves are declared by the government.
Conservation reserves are declared by the government.
12. Answer: B
Hotspots have high extinction risk + high endemism.
Hotspots have high extinction risk + high endemism.
13. Answer: D
Not all hotspots are protected areas → key UPSC trap.
Not all hotspots are protected areas → key UPSC trap.
14. Answer: B
Biosphere reserves support conservation + development.
Biosphere reserves support conservation + development.
15. Answer: C
Biodiversity loss leads to ecosystem imbalance.
Biodiversity loss leads to ecosystem imbalance.
Elimination Logic (Important):
• “Strict protection” → National Park
• “Limited activity” → Sanctuary
• “Zonation system” → Biosphere Reserve
• “Endemism + Threat” → Hotspot
• “Strict protection” → National Park
• “Limited activity” → Sanctuary
• “Zonation system” → Biosphere Reserve
• “Endemism + Threat” → Hotspot
UPSC Insight:
Most questions test clarity between similar concepts. Focus on differences, not definitions alone.
Most questions test clarity between similar concepts. Focus on differences, not definitions alone.
Shaktimatha Learning
Understand Logic | Avoid Traps
Understand Logic | Avoid Traps
Pure • Calm • Minimal Aesthetic
Biodiversity & Conservation – Complete UPSC Prelims Series
Page 1: Concepts & Strategy
Page 2: MCQs (Concept Traps)
Page 3: Answers & Reasoning
Page 4: Quick Revision
Page 5: PYQs & Mock Test
Page 1: Concepts & Strategy
Page 2: MCQs (Concept Traps)
Page 3: Answers & Reasoning
Page 4: Quick Revision
Page 5: PYQs & Mock Test
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