NCERT Companion · Environment
NCERT Environment for UPSC
Ecology and Environment — ecosystems, biodiversity, conservation, and environmental issues from NCERT Class 12 Biology.
4
Chapters
57
UPSC PYQs linked
4
High-Yield
UPSC angle — Environment and Ecology contributes 10–15 questions — one of the fastest-growing sections. Class 12 Biology ecology chapters are the baseline; pair with Shankar IAS Environment for complete Prelims coverage.
Class 12
Environment
13
Organisms and Populations
Ch 13High-Yield
Organisms and Populations
5 PYQs
Environment
14
Ecosystem
Ch 14High-Yield
Ecosystem
16 PYQs
Environment
15
Biodiversity and Conservation
Ch 15High-Yield
Biodiversity and Conservation
20 PYQs
Environment
16
Environmental Issues
Ch 16High-Yield
Environmental Issues
16 PYQs