Question

15 why does the red dwarf path not lead to a supernova, even after hundreds of billions of years? low mass and dont use fuel quickly unlike massive stars
16 part a: sequence practice
16 place the following in the correct order for a sun - like star red giant, protostar, planetary nebula, white dwarf, star - forming nebula
star forming nebula, protostar, red giant, planetary nebula, white dwarf
17 place the following in order for a massive star protostar, supernova, red supergiant, black hole, star - forming nebula
18 place the following in order for a low mass star red dwarf, white dwarf, star - forming nebula, protostar

Explanation:

Stars evolve based on their mass. For a massive star, it starts as a star - forming nebula, then becomes a protostar, grows into a red supergiant, explodes as a supernova, and can end as a black hole. For a low - mass star, it begins as a star - forming nebula, becomes a protostar, then a red dwarf and can end as a white dwarf.

Answer:

1. Star - Forming Nebula, Protostar, Red Supergiant, Supernova, Black Hole
2. Star - Forming Nebula, Protostar, Red Dwarf, White Dwarf