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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Definitions:

Main Effects

The direct impact of an independent variable on a dependent variable in an experimental design.

Factorial ANOVA

A statistical test used to determine the effect of two or more independent variables on a dependent variable, allowing interaction effects to be assessed.

Independent Variables

Variables in an experiment or model that are manipulated or changed to observe their effects on dependent variables.

Interaction Effects

The influence that the combination of two or more independent variables has on a dependent variable, beyond their individual effects.