How Does the Energy of the Cosmic Microwave Background Compare

question 46

Multiple Choice

How does the energy of the cosmic microwave background compare to the energy radiated byall the stars and galaxies that ever existed?

• A)They are very close to being equal.
• B)73% cosmic background, 27% starlight.
• C)About ten times more from the Big Bang than from stars and galaxies.
• D)The starlight now dominates the background, as your eyes show clearly.
• E)We have no way of comparing matter and energy this way.

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Definitions:

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The branch of biology that studies the origins and changes in the diversity of life over time.

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Significant occurrences or happenings, especially those that mark a particular period or are of historical importance.

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