A. 79.30
B. 89.70
C. 99.86
D. 80.30
🧠 Explanation:
The Sun, holding 99.86% of the solar system’s mass, dominates its gravitational structure. Composed mostly of hydrogen and helium, it fuels nuclear fusion, providing energy for billions of years. This G-type star drives planetary orbits and sustains life on Earth through heat and photosynthesis. Its immense mass shapes the solar system’s dynamics, keeping planets, asteroids, and comets in place. The Sun’s central role is critical for understanding cosmic stability and evolution. Studied extensively in astronomy, it remains key to exploring energy production, climate, and the potential for life elsewhere in the universe.
