1. PART A: Which statement identifies the central idea of the text? The sun is the most important star in our solar system and is responsible for life on Earth and order in our solar system. B. Astronomers know very little about the sun and are constantly working to figure out how important it is to our solar system. С. While the earth is the center of our solar system, the sun provides organisms with the light and warmth to live. D. Astronomers believe that the sun could support life on other planets as it is responsible for sustaining life on Earth. A BC Or d?