Comprehensive APSC Geography notes for Prelims and Mains, written in simple language for beginners. Covers physical geography (interior of the Earth, plate tectonics, earthquakes, volcanism, rocks, rivers), oceanography (currents, tides, corals, UNCLOS), climatology (seasons, atmosphere, pressure belts) and world regional map facts - with labelled SVG diagrams, revision notes, statement-based MCQs and descriptive Mains questions with model answers.