Biogeochemistry is the scientific discipline which focuses on understanding the characteristics and behaviour of chemical elements in biological systems and their interaction with living organisms. The significant topics encompassed in this book are biogeochemical cycles of chemical elements like carbon and nitrogen, soil formation and remediation, chemical composition of natural waters and their interaction with other substances, origin of petroleum and coal deposits, etc. It strives to provide a comprehensive idea about this discipline and to help develop a better understanding of the latest advances within this field. This book will serve as a reference to a broad spectrum of readers.