Question

part 1: fill - in - the - blank

1. all stars begin their life in a
2. the stage that immediately follows the star - forming nebula is the
3. a sun - like star eventually becomes a in the intermediate stage
4. a red dwarf is a type of mass star
5. a massive star becomes a before exploding as a supernova
6. the final stage of a low - mass star is a
7. a massive star that collapses entirely after a supernova becomes a

part 2: multiple choice

1. which star type has the longest overall lifespan?

a. sun - like star
b. red giant
c. red dwarf
d. massive star

Explanation:

1. Stars form from nebulae.
2. After nebula, protostar stage follows.
3. Sun - like stars become red giants in intermediate stage.
4. Red dwarfs are low - mass stars.
5. Massive stars become red supergiants before supernova.
6. Final stage of low - mass star is white dwarf.
7. Massive stars can become black holes after supernova.
8. Red dwarfs have longest lifespan as per given info.

Answer:

1. nebula
2. protostar
3. red giant
4. low
5. red supergiant
6. white dwarf
7. black hole
8. C. Red dwarf