In the Early Universe, Why Were Inhomogeneities in the Distribution

question 68

Multiple Choice

In the early universe, why were inhomogeneities in the distribution of normal matter much smaller than inhomogeneities in the dark matter?

• A) Normal matter was pushed away by supernova explosions.
• B) Large-scale magnetic fields smoothed the distribution of charged particles in the normal matter but not in dark matter.
• C) Dark matter particles were more massive than and cooled off before normal matter, and so dark matter fluctuations had more time to grow.
• D) Dark matter was 10 times more massive than normal matter.
• E) Radiation pressure affected normal matter but not dark matter.

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Definitions:

Sharp Trading

Aggressive or deceitful trading practices that lie on the fringes of legality, often associated with unethical behavior in financial markets.

Balanced Reciprocity

A form of exchange where goods or services of roughly equal value are traded within a specified time frame, often among people with a social relationship.

Barter

is a method of exchange where goods or services are traded directly for other goods or services without the use of money.

Generalized Reciprocity

A form of exchange where goods or services are given with the expectation that the recipient will reciprocate in the future without a specified value or time frame.