Astronomers Conclude That Quasars Must Come from the Earliest Phases

question 10

Multiple Choice

Astronomers conclude that quasars must come from the earliest phases of the Universe because they ____.

• A) have supermassive black holes
• B) are colliding with other galaxies
• C) create jets
• D) have large redshifted spectra
• E) have a fluctuating luminosity

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Definitions:

DSM-IV-TR

The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision; a manual published by the American Psychiatric Association detailing diagnostic criteria for mental disorders.

Disruptive Behavior Patterns

Actions or sequences of actions that interrupt the normal flow or functioning of a social or operational system.

Significant Behavior Patterns

Regularly occurring actions or reactions that have importance in predicting or understanding an individual's behavior.

Obsessions

Persistent, unwanted thoughts, images, or impulses that cause significant distress or anxiety.