CONTENTS: 1. Introduction; 2. Climatic and Topographic Factors; 3. Edaphic Factors : Soil Science; 4. Water Regimes and Ecological Adaptations; 5. Biotic Factor (Interactions Among Organisms); 6. Autecology of Species; 7. Population Characteristics, Growth and Regulation; 8. Community Characteristics, Classification and Succession; 9. Ecosystem Structure and Rate Functions; 10. Habitat Ecology; 11. Environmental Challenges and Sustainable Development; 12. Air Pollution and Status of Air Quality in India; 13. Water Pollution and Water Quality in India; 14. Land Pollution; 15. Radiation and Chemical Toxicology; 16. Bioremediation of Polluted Environments; 17. Global Warming and Climate Change; 18. Natural Resources Degradation and Conservation; 19. Biogeographic Regions and Vegetation of India; 20. Biodiversity and Wildlife Conservation; 21. Energy and Environment; 22. Environmental Monitoring and Impact Assessment; 23. Environmental Laws; 24. Environmental Education and Organisations;  Glossary;  Index