Why Did the Era of Nuclei End When the Universe

question 82

Multiple Choice

Why did the era of nuclei end when the universe was about 380,000 years old?

• A) All the free particles had combined to form the nuclei of atoms.
• B) The universe had expanded and cooled enough for stable, neutral atoms to form.
• C) Atomic nuclei were finally able to escape the plasma of the early universe.
• D) Photons were finally able to escape the plasma of the early universe and were no longer available to produce hydrogen and helium nuclei.
• E) The nucleosynthesis era that produced the nuclei heavier than helium ended.

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Definitions:

Manifest Content

In psychoanalytic theory, the literal surface content of a dream, as opposed to its hidden or symbolic meaning.

Repressed Memories

Memories suppressed without conscious effort due to their connection with significant trauma or stress.

Unconscious Wishes

Desires or thoughts that reside within the unconscious mind, influencing behavior without the individual's awareness.

Inferiority Complex

A psychological condition in which a person feels a deep sense of inadequacy and lacking in comparison to others.