If a Galaxy Contains a Great Deal of "Dark Matter

question 25

Multiple Choice

If a galaxy contains a great deal of "dark matter," what will that do the galaxy's mass-to-light ratio?

• A) increase it a small amount
• B) decrease it a small amount
• C) increase it quite a bit
• D) decrease it quite a bit
• E) not affect it in any way (since it's dark matter)

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