after main sequence

Question 1

1. low mass

Answer 1

red dwarfs who m is 0.5m and m is stellar masses and it ends its life as a white dwarf

Question 2

medium sized stars

Answer 2

bigger than 0.5 but less than 8m
hydro can end here and becomes a sub giant and burns helium and becomes a red giant and it grows
then once hel is gone it blows its layers into a planetary nebula
and a white dwarf is left

Question 3

Planetary nebula

Answer 3

outer layers of a RG blasted off
fusion stops and gravity pulls in
not an explosion
makes no new elements and is very old

Question 4

Sequence:

Answer 4

interstellar cloud- protostar-small star-red giant-planetary nebula-white dwarf