White Dwarfs Are Not Included in the Luminosity Classification Because

question 4

Multiple Choice

White dwarfs are not included in the luminosity classification because they are:

• A) not yet active stars; they have not yet begun nuclear reactions.
• B) no longer producing energy by nuclear reactions.
• C) no longer radiating energy away.
• D) too small.

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Definitions:

Beta Waves

Brainwave patterns associated with active, alert cognition and wakefulness.

Total Sleep Time

The total amount of actual sleep time in a given sleep session, excluding all periods of wakefulness.

Slow-Wave

Referring to the low-frequency, high-amplitude brainwaves that are dominant during the deepest stages of sleep, playing a critical role in restorative sleep processes.

REM

Rapid Eye Movement, a sleep phase characterized by fast movements of the eyes, low muscle tone, vivid dreams, and increased brain activity.