Origin of Earth, Geological history of the Earth, Internal structure of Earth, Distribution of Land and water, Materials of the earth crust - Rocks and Minerals, Theory of Isostasy, Theory of continental draft, Sea floor spreading, Plate Tectonics, Earthquakes and Earth Interior, Volcanic Landforms and intrusive features, Landforms of Tectonic Activity, Mountain Building, Weathering, Mass Wasting and Erosion, Fluvial processes and landforms, River Valley Development and Channel Morphology, River System and Drainage pattern, cycle of erosion, development of slopes, plantation and erosion surfaces, work of underground water, Karst Topography, wind action and aeolian landforms, Characteristics of Glaciers, Glacial Landforms, Periglacial landforms, Types of Lakes, Marine erosion and coastal landforms, Geomorphology of ocean floor, coral reefs and coral islands, conflicting views, Applied Geomorphology