The thouroughly Updated 4th Edition of the book Ecology & Environment Compendium for General Studies CSAT Paper 1 & State PCS provides the MOST UPDATED material for the UPSC & State PSC Prelim & Main Exam. # This new edition has been mapped with the syllabus of NCERT Class 6 to 12 Books. Most of the Concepts of NCERT are covered in these books. # Further in this new edition IAS Mains Past Questions are inserted at various places in the Chapters. Also practice Mains questions are provided at the end of each Chapter. # There are 4 Exercises in the Book - (i) IAS & State PSC Prelim Previous Year Questions, (ii) NCERT based Questions; (iii) Basic Practice MCQs & (iv) Statement & Matching MCQs. # The USP of the book is that the information is captured in a self-explanatory and easy to remember methodology which comprises of Mind Maps, Infographics, Charts, Tables and latest exam pattern MCQs. # The emphasis of the book has been on capturing each and every detail pertaining to the Ecology & Environment which is important from the point of view of the exam. # The book captures most of the important questions with explanations of the past years of the IAS Prelim exam, State PSC, CDS, NDA and other competitive exams distributed in the various chapters. # The book is divided into 9 chapters.