Students appearing for competitive exams require academic support in addition to their usual text and reference books, in the form of definitions and short descriptions and their collection under one glossary. The concepts and ideas elaborated in the form of diagrams and illustartions are always more useful to them for understanding the subjects expecially from earth sciences.
This collection is prepared with this in mind. The terms and concepts collected here cover major part of the subject matter and are written in manner such that it is easy to understand. Appropriate diagrams have been used whereever necessary.