UPSC CSE Prelims 2011 Q20 — Environment & Ecology PYQ with Answer

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?