Answer:
1- black hole (attracts all matter and energy that come near by)
2- Planetary Nebula ( shells that are cast away from a low-mass star)
3- Red Supergiant ( a heavy star that expands and gives off large amounts of light)
4- white dwarf ( a low mass star that has shed its outer layers)
Step-by-step explanation:
white dwarf is the core of planetary nebula ,planetary nebula are the shells that have been " removed "
black hole basically just takes in everything in that comes near it and a red supergiant is a large star
