This book on Environmental Studies tothe students of IV Semester, Diploma Engineering, all branches. This book has beenplanned according to the latest syllabus of MSBTE which comes into effect fromthe academic year 2013-2014. The book covers a wide spectrum of this subject andstrictly as per the requirement of MSBTE curricula. Since the examination of thissubject is expected to be online (multiple choice), a large number of multiple choicequestions (more than 450) have been added at the end of each chapter.