Question

Arrange these phases in the partial life cycle of a star in order, starting with the earliest event.

Answer 1

1. red giant  1. a star whose outer shell has expanded an cooled                                                                  

2.super nova 2. a shock wave produce by extremely high temperature

3. black hole 3. a high-mass star that has collapsed from gravity

4. white dwarf 4. a low-mass star that has shed it's outer layers

is correct answer

Answer 2

Protostar
Then main phase so there are two possibilities:
1. Average size star (size of the sun)
Undergoes main phase, then becomes a red giant, then planetary nebula, then white dwarf.
2. Massive star
Undergoes main phase, then red supergiant, then supernova (star implodes) then the star becomes a neutron star OR if it was REALLY big a black hole.