Based on Galactic Rotation Curves and Cluster Dynamics, We Think

question 72

Multiple Choice

Based on galactic rotation curves and cluster dynamics, we think dark matter

• A) comprises over 90% of the entire mass of the universe.
• B) is best detected from the X- rays it produces in the intergalactic medium.
• C) is a minor component of the entire mass of the universe.
• D) will doom the universe to collapse, overcoming the redshifts we now observe.
• E) will have no effect on the fate of the universe.

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Definitions:

Primitive Urges

Basic, innate desires or instincts that motivate behavior.

Exposure And Response Prevention Therapy

A form of cognitive-behavioral therapy aimed at reducing compulsive behaviors by encouraging patients to confront their fears and decrease their sensitivity to them.

Obsession

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

Compulsions

Repetitive behaviors or mental acts that an individual feels driven to perform in response to an obsession, or according to rules that must be applied rigidly.