What process causes most earthquakes and volcanoes? 👤 By The Quiz Wire Editorial Team 🌐 Source Geography Reference Library ✅ Fact Checked 📊 Difficulty Medium 📅 Last Updated 01 Dec 2025 A. Glaciation B. Weathering C. Erosion D. Plate tectonics Check Answer 💡 Explanation: The movement and interaction of tectonic plates drive most seismic and volcanic activity. 📚 Topics: Geography Natural Phenomena 🎯 Exams: CSS GEN NTS PMS