The Choices Below Each Describe the Appearance of an H-R

question 75

Multiple Choice

The choices below each describe the appearance of an H-R diagram for a different star cluster.Which cluster is the youngest?

• A)The diagram shows main-sequence stars of spectral types G,K,and M,along with numerous giants and white dwarfs.
• B)The diagram shows main-sequence stars of all the spectral types except O and B,along with a few giants and supergiants.
• C)The diagram shows main-sequence stars of every spectral type except O,along with a few giants and supergiants.
• D)The diagram shows no main-sequence stars at all,but it has numerous supergiants and white dwarfs.

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