Which of the following is left behind when a star dies?
A) A black hole
B) A red giant
C) A gray dwarf
D) A yellow node
Question 2
In the context of supernova explosions, the _____ is a young remnant, only about 960 years old and about 9 ly in diameter.
A) Lagoon Nebula
B) Carina Nebula
C) Eagle Nebula
D) Crab Nebula