Earth science is the science that studies the physical constitution of the Earth and its atmosphere. This includes the analysis of the physical characteristics of the Earth, such as earthquakes, floods, fossils, etc. The lithosphere, atmosphere, hydrosphere and the biosphere are the fundamental spheres of the Earth. The studies of these are approached in a multidisciplinary manner involving the integration of the tools of geography, physics, chronology, chemistry, etc. The study of the Earth's atmosphere, its magnetic field and the Earth's interior are some of the areas of interest in this domain. This book presents the complex subject of Earth science in the most comprehensible and easy to understand language. Some of the diverse topics covered in this book address the varied branches that fall under this category. A number of latest researches have been included to keep the readers up-to-date with the global concepts in this area of study.