In which stage do stars spend 90% of their life fusing hydrogen? 👤 By The Quiz Wire Editorial Team 🌐 Source Astronomy Knowledge Base ✅ Fact Checked 📊 Difficulty Medium 📅 Last Updated 01 Dec 2025 A. Nebula B. Red Giant C. Protostar D. Main Sequence Check Answer 💡 Explanation: Stars spend the majority of their lifetimes in the stable Main Sequence phase. 📚 Topics: Astronomy Science 🎯 Exams: CSS GEN NTS PMS
