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GS Paper IUPSC Prelims 2011
Biodiversity & Conservation
Question No. 38Interactive Test Mode
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Q38. Three of the following criteria have contributed to the recognition of Western Ghats-Sri Lanka and Indo-Burma regions as hotspots of biodiversity: 1. Species richness 2. Vegetation density 3. Endemism 4. Ethno-botanical importance 5. Threat perception 6. Adaptation of flora and fauna to warm and humid conditions Which three of the above are correct criteria in this context?

Three of the following criteria have contributed to the recognition of Western Ghats-Sri Lanka and Indo-Burma regions as hotspots of biodiversity:

  1. Species richness
  2. Vegetation density
  3. Endemism
  4. Ethno-botanical importance
  5. Threat perception
  6. Adaptation of flora and fauna to warm and humid conditions Which three of the above are correct criteria in this context?
Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 2011 • Environment and Ecology

Correct Answer: Option (C) — 1, 3 and 5

Concept & Option Breakdown

Standard Reference Verified

To qualify as a Biodiversity Hotspot according to Norman Myers and Conservation International, a region must meet two strict criteria:

  1. Endemism/Species richness: It must contain at least 1,500 species of vascular plants (>0.5% of the world's total) as endemics.
  2. Threat perception: It must have lost at least 70% of its primary native vegetation (i.e., it has 30% or less of its original natural vegetation remaining).

Vegetation density, ethno-botanical importance, and adaptation to climatic conditions are not part of the official criteria.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2011 (Q38)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicEnvironment and Ecology → Biodiversity & Conservation
Official Answer KeyOption (C) — 1, 3 and 5

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Frequently Asked Questions — UPSC Prelims 2011 Q38

What is the official answer for UPSC Prelims 2011 GS Paper I Question 38 (Environment and Ecology)?

The official UPSC answer key for this 2011 Environment and Ecology (Biodiversity & Conservation) question is Option (C): "1, 3 and 5". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2011 question belong to?

This question belongs to GS Paper I under the subject "Environment and Ecology" and micro-topic "Biodiversity & Conservation". You can explore all repeated questions from Biodiversity & Conservation in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Biodiversity & Conservation UPSC Prelims question using option elimination?

To solve Biodiversity & Conservation questions in UPSC Prelims, identify extreme modifiers, verify core NCERT conceptual definitions, and eliminate mutually contradictory statement pairs before locking your final option.

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Previous QuestionWhich one of the following is not a site for the in-situ method of conservation of flora?
Next QuestionConsider the following statements: 1. Biodiversity is normally greater in the lower latitudes as compared to the higher latitudes. 2. 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?