If Neutrinos Have Mass but Do Not Interact Much with Normal

question 2

Multiple Choice

If neutrinos have mass but do not interact much with normal matter,why can't they be the dominant form of dark matter in the universe?

• A) Structure formation would have started with large objects fragmenting into smaller objects.
• B) Structure formation would have started with small objects merging to form larger objects.
• C) Neutrinos would decay over time and disappear,causing galaxies to fall apart.
• D) Neutrinos would not gravitationally lens background galaxies.

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