Biodiversity and Conservation — Class 12 Biology NCERT Solutions (Free)

Free step-by-step NCERT solutions for Class 12 Biology chapter "Biodiversity and Conservation" — 8 important questions with detailed answers for CBSE board exam preparation.

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TL;DR: Free step-by-step NCERT solutions for Class 12 Biology chapter "Biodiversity and Conservation" — 8 important questions with detailed answers for CBSE…

Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated Jul 23, 2026

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Key Questions Covered:

Define biodiversity. What are its levels?
What is species diversity? Explain alpha, beta, and gamma diversity.
What are hotspots of biodiversity? Name biodiversity hotspots in India.
Define endangered species and threatened species. Give examples from India.
Explain habitat loss, poaching, and pollution as threats to biodiversity.
What are in-situ and ex-situ conservation? Give examples of each.
+ 2 more questions in the full chapter

Solutions Summary:

Question	Status
Define biodiversity. What are its levels?	✓ Solved
What is species diversity? Explain alpha, beta, and gamma…	✓ Solved
What are hotspots of biodiversity? Name biodiversity hots…	✓ Solved
Define endangered species and threatened species. Give ex…	✓ Solved
Explain habitat loss, poaching, and pollution as threats …	✓ Solved
What are in-situ and ex-situ conservation? Give examples …	✓ Solved

Showing 6 of 8 questions

Q1: Define biodiversity. What are its levels?

Biodiversity (biological diversity) is the variety of life forms present in a given area. It encompasses genetic, species, and ecosystem diversity at different scales.

Q2: What is species diversity? Explain alpha, beta, and gamma diversity.

Species diversity is variety of different species in an area. Measured using species richness and evenness metrics.

Q3: What are hotspots of biodiversity? Name biodiversity hotspots in India.

Biodiversity hotspots are regions with exceptionally high species diversity and endemism, prioritized for conservation efforts.

Q4: Define endangered species and threatened species. Give examples from India.

Endangered species are populations at risk of extinction in near future. Threatened species include vulnerable, endangered, and critically endangered categories.

Q5: Explain habitat loss, poaching, and pollution as threats to biodiversity.

These are major causes of biodiversity loss affecting species survival and ecosystem functioning globally.

Q6: What are in-situ and ex-situ conservation? Give examples of each.

In-situ conservation protects species in natural habitats through protected areas. Ex-situ conservation maintains species outside natural habitats in zoos and botanical gardens.

Showing 6 of 8 questions. Visit the full page for complete solutions.