Question

drag each tile to the correct box. arrange the phases in the life cycle of the sun in order from the birth of the sun to the time in the far distant future when the sun has cooled. tiles (blue boxes): begins nuclear fusion at its core, exists as it is today, enters red giant phase, casts off matter as planetary nebula, becomes a white dwarf, becomes a black dwarf

Explanation:

The life cycle of the Sun starts with nuclear fusion beginning at its core (formation of the Sun as a main - sequence star). Then it exists as it does today (main - sequence phase). After that, it enters the red giant phase. Next, it casts off matter as a planetary nebula. Then it becomes a white dwarf. Finally, in the far - distant future, it becomes a black dwarf (after the white dwarf cools completely). So the correct order from birth to when it has cooled is: begins nuclear fusion at its core, exists as it is today, enters red giant phase, casts off matter as planetary nebula, becomes a white dwarf, becomes a black dwarf.

Answer:

1. begins nuclear fusion at its core
2. exists as it is today
3. enters red giant phase
4. casts off matter as planetary nebula
5. becomes a white dwarf
6. becomes a black dwarf