Question

question 4 (2 points)
very large star of high luminosity and low surface temperature, thought to be in a late stage of evolution when no hydrogen remains in the core to fuel nuclear fusion.
o a red giant
o b nuclear fusion
o c main sequence star
o d core collapse

Explanation:

• A red giant is a very large star with high luminosity and low surface temperature. It is in a late - stage of evolution when hydrogen in the core (used for nuclear fusion) is depleted.
• Nuclear fusion is the process by which stars generate energy (not the type of star described).
• A main - sequence star is in the stable hydrogen - fusing stage (not the late stage described).
• Core collapse is an event (a stage in the death of a massive star, not the description of a star type).

Answer:

A. red giant