Put the different stages of the life cycle of an average start in the correct sequence. (1 point)
The correct sequence of the different stages of the life cycle of an average star is:
1. Nebula: A cloud of gas and dust in space.
2. Protostar: The beginning of a star, formed from the contraction of the nebula.
3. Main Sequence: The stage where the star is stable and fusing hydrogen into helium in its core.
4. Red Giant: A phase that occurs when the hydrogen in the core runs out, causing the outer layers of the star to expand.
5. Planetary Nebula: The outer layers of the red giant are shed, forming a glowing shell of gas and dust.
6. White Dwarf: The remaining core, composed mostly of carbon and oxygen, which slowly cools and fades away.
7. Black Dwarf: The final stage, where the white dwarf has completely cooled and no longer emits light.