Some Dark Matter May Be Ordinary Matter That Orbits in the Halo

question 8

Multiple Choice

Some dark matter may be ordinary matter that orbits in the halo of the galaxy. Which of the following would not be considered a type of ordinary dark matter?

• A)globular clusters in the halo of the galaxy
• B)planets in the halo of the galaxy
• C)brown dwarfs in the halo of the galaxy
• D)you, if you happened to be floating in the halo of the galaxy

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