Why Can't the Dark Matter in Galaxies Be Made of Neutrinos

question 25

Multiple Choice

Why can't the dark matter in galaxies be made of neutrinos?

• A)Neutrinos have zero mass like the photon.
• B)Neutrinos travel at extremely high speeds and can escape a galaxy's gravitational pull.
• C)There are not enough neutrinos to make up all the dark matter.
• D)We know that dark massive objects, such as planets and neutron stars, are not made of neutrinos.

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Definitions:

Four-Firm Concentration Ratio

An economic metric that assesses the market power of the four largest firms in an industry, expressed as a percentage of total market sales.

Pure Competition

A market structure characterized by a large number of small firms selling identical products, with no single seller having a significant influence on market price.

Oligopoly

A market structure characterized by a small number of large firms dominating the market, leading to limited competition.

Mutually Cancelling Advertising

Mutually cancelling advertising refers to a situation where the competitive advertising efforts of firms negate each other's impact, leading to no significant change in market share.