Which of these phrases describes the sun?

A natural source of light and heat in the solar system.

The sun can be described by the following phrases:

1. A ball of hot gases
2. The center of our solar system
3. A star that provides heat and light
4. Approximately 4.6 billion years old
5. The source of Earth's energy
6. Yellow in color (to the naked eye)
7. Made up mostly of hydrogen and helium gases