If the Spiral Density Wave Were the Only Thing Producing

question 5

Multiple Choice

If the spiral density wave were the only thing producing spiral arms, it would be expected that

• A)all spiral arms would be gas and dust free.
• B)all galaxies would have only two smooth spiral arms.
• C)the Milky Way would show and irregular pattern of short arms .
• D)the Milky Way wouldn't have any spiral arms.
• E)the halo component of the Milky Way would show spiral arms as well.

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Definitions:

Meditation

The attainment of a peaceful state of mind in which thoughts are not occupied by worry; the meditator is mindfully present to their thoughts and feelings but is not consumed by them.

Hypnagogic Reverie

A state of consciousness occurring in the transition from wakefulness to sleep, characterized by vivid, dreamlike experiences or hallucinations.

High Consciousness

An elevated state of awareness, including greater focus, alertness, and an expanded sense of connection with one's surroundings or self.

Hypnosis

A trance-like state of focus and concentration achieved with the help of a therapist, used for therapeutic purposes.