Biogeochemistry and biogeophysics are branches of biogeosciences which focus on the study of diverse processes occurring within the environment. This book includes some of the vital pieces of work being conducted across the world on various topics related to biogeophysics and biogeochemistry. Some of the topics that have been elucidated in this book are interactions between microbes and organic matter sediments, study of gas exchange and gas cycles, global elemental cycles, etc. This book caters to graduate and postgraduate students along with scholars and researchers in the field of biogeosciences and associated fields of study.