UPSC CSE Prelims
Biodiversity and Conservation Previous Year Questions (PYQs)
Showing solved Previous Year Questions for Chapter: Biodiversity and Conservation
Topic Breakdown: Scroll →
Which of the following can be threats to the biodiversity of a geographical area?
- Global warming
- Fragmentation of habitat
- Invasion of alien species
- Promotion of vegetarianism
Detailed Explanation:
✅ Statement 1 – Correct: Global warming causes climate change, leading to habitat loss, altered precipitation patterns, and species extinction due to inability to adapt to rising temperatures.
✅ Statement 2 – Correct: Habitat fragmentation divides large habitats into smaller, isolated patches, reducing genetic diversity, disrupting migration corridors, and making populations more vulnerable to extinction.
✅ Statement 3 – Correct: Invasive alien species (e.g., Lantana camara, Water hyacinth) outcompete native species for resources, disrupt ecological balance, and cause local extinctions.
❌ Statement 4 – Incorrect: Promotion of vegetarianism reduces pressure on ecosystems by decreasing demand for livestock farming, which causes deforestation and habitat destruction—thus it benefits biodiversity, not threatens it.
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