The Isotropy of the Cosmic Microwave Background Radiation (Same Temperature

question 103

Multiple Choice

The isotropy of the cosmic microwave background radiation (same temperature in all directions) indicates that

• A) the universe has always been dominated by matter.
• B) the universe had an early period of inflation in which regions initially in contact were carried out of contact with each other.
• C) the universe did not begin to expand significantly until after the era of recombination.
• D) regions that appear to us to be on opposite sides of the visible universe are in fact in close contact with each other.

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Definitions:

Cognitively Accurate

Referring to thoughts or perceptions that correctly represent reality.

Empathic

The characteristic of being able to understand and share the feelings of another person.

Egocentric

Characterized by or thinking only of oneself, without regard for the feelings or desires of others; self-centered.

Instrumental

Serving as a means or aid in something, especially in a musical context or scientific research.