Consider the following : 1. Electromagnetic radiation 2. Geothermal energy 3. Gravitational force 4. Plate movements 5. Rotation of the earth 6. Revolution of the earth Which of the above are responsible for bringing dynamic changes on the surface of the earth?

Correct Answer: D) 1, 2, 3, 4, 5 and 6 Dynamic changes on the Earth's surface are produced by both endogenic (internal) and exogenic (external) forces. All six factors listed contribute, directly or indirectly, to these changes: 1. Electromagnetic radiation - Solar radiation (a form of EM radiation) is the primary driver of weathering, evaporation, the hydrological cycle, atmospheric circulation and the resulting erosion/deposition that constantly reshape the surface. 2. Geothermal energy - The Earth's internal heat drives plate tectonics, volcanism, mountain building and earthquakes — the principal endogenic forces. 3. Gravitational force - Gravity drives mass movements (landslides, slumping), the flow of rivers and glaciers, and tidal forces that erode coasts; it underlies almost every gradational process. 4. Plate movements - Cause continental drift, orogeny, ocean-basin formation, earthquakes and volcanism, producing large-scale surface change. 5. Rotation of the earth - Generates the Coriolis effect, influencing wind systems, ocean currents and the diurnal cycle, all of which affect weathering and erosion. 6. Revolution of the earth - Produces the seasons, controlling temperature and precipitation regimes, glaciation cycles and biogeographic processes that shape the surface over time. Since every listed factor contributes to dynamic changes on the Earth's surface, option D is correct.