Please select the word from the list that best fits the definition
stage in a star's evolution formed as the core of a main sequence star uses up its helium and the outer layers escape into


Respuesta :

Explanation:

Giant Gas Cloud. A star originates from a large cloud of gas. ...

Protostar. When the gas particles in the molecular cloud run into each other, heat energy is produced. ...

T-Tauri Phase. ...

Main Sequence. ...

Red Giant. ...

The Fusion of Heavier Elements. ...

Supernovae and Planetary Nebulae