Which element is most abundant in Earth’s crust? 👤 By The Quiz Wire Editorial Team 🌐 Source Science & Technology Archive ✅ Fact Checked 📊 Difficulty Medium 📅 Last Updated 01 Dec 2025 A. Iron B. Oxygen C. Silicon D. Aluminum Check Answer 💡 Explanation: Oxygen makes up nearly half of the Earth's crust by mass. 📚 Topics: Earth Science Science 🎯 Exams: CSS GEN NTS PMS
