If the Density of the Universe Is at the Critical

question 56

Multiple Choice

If the density of the universe is at the critical density, this means that:

• A)the universe is expanding at a rate equal to the escape speed of the universe.
• B)the universe is expanding at a rate less than the escape speed of the universe.
• C)the universe is expanding at a rate greater than the escape speed of the universe.
• D)the universe is expanding at a rate equal to the speed of light.
• E)the universe is expanding at a rate greater than the speed of light.

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Definitions:

Serotonin

The “feel good” neurotransmitter, low levels of which have been linked to aggression and violence in both animals and humans.

Depression

A disorder impacting mental wellness, defined by ongoing low spirits or a disinterest in normal tasks, significantly affecting day-to-day living.

Crowding

The subjective and unpleasant feeling that there are too many people in a given area.

Density

The number of people divided by the area of the space they share.