Earth Science Olympiad (IESO) Entrance Book is published by Ramesh Publishing House. It is available in English medium. Latest Edition & Uptodate Best Guide Book cum Reference Book for International Earth Science Olympiad (IESO) Exam Preparation. Consist of Previous Years Solved Question Papers; prepared & designed strictly in accordance with the syllabus and examination pattern – International Earth Science Olympiad (IESO) Entrance Test. Content of the book: Previous Years’ Paper (Solved) 2010 to 2018; Chapter-1: Geosphere; Chapter-2: Astronomy; Chapter-3: Atmosphere; Chapter-4: Hydrosphere.