Earth Science and Technology is a book which has been designed to cater to the need for an ïnteresting, comprehensive introductory manual to this science. Highlighting on each of the sub-sciences under this field, the book explores every category thoroughly, analysing and assessing the principles of each science, its relevance to understanding the planetary science of earth, its requisites and its future. Environmental issues like global warming, the increasing frequency of natural disasters, and increasing awareness about taking care of the planetary system, have all contributed to a revival in the interest of the earth Sciences today. As such, it becomes highly relevant to provide a reliable and competent source of information on this topic, which this book hopes to be.