Environmental Science is one of the most important interdisciplinary areas of science which has been emerging with immense potentialities for the entire humanity, over the past few decades. Considering its wide application in the
contemporary world, the present volume has been prepared, which is comprehensive in nature and well-documented with updated facts and figures. This book can be used as a reference tool for the core module of Environmental Education at the undergraduate level of all disciplines and as a standard text for the postgraduate students of Environmental Science and
Engineering disciplines.