The sketch above shows groups of stars on the H- R diagram, labeled (a)through (e); note that (a)represents the entire main sequence while (c)and (d)represent only small parts of the main sequence. Which group represents stars that have no ongoing nuclear fusion?

Question

Quizplus · Accepted Answer

The group labeled (b) represents stars that have no ongoing nuclear fusion. These are known as white dwarfs, which have exhausted their nuclear fuel and have no energy source to continue fusion reactions.

The Sketch Above Shows Groups of Stars on the H-