What process causes most earthquakes and volcanoes? By Rabia Anum 🌐 Source Geography Reference Library ✅ Fact Checked 📊 Difficulty Medium 📅 Last Updated 13 Aug 2026 A. Erosion B. Weathering C. Plate tectonics D. Glaciation 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