What is the ‘thalweg’ principle in international boundaries? By Rabia Anum ✅ Fact Checked 📊 Difficulty Hard 📅 Last Updated 13 Aug 2026 A. Median line B. Deepest channel C. Left bank D. Right bank Check Answer 💡 Explanation: The thalweg principle determines a river boundary based on the line of the deepest channel, ensuring shared navigation rights. 📚 Topics: Borders and Boundaries Geography 🎯 Exams: CSS GEN PMS