A Planetary Nebula Is Created

question 139

Multiple Choice

A planetary nebula is created

• A) over several hundred years, during mass transfer in a close binary star system.
• B) over a few thousand years or more, in a slow expansion away from a low-mass star, driven by a series of thermal pulses from helium fusion.
• C) in hours or less, during the explosion of a massive star.
• D) in seconds, during the helium flash in a low-mass star.

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Definitions:

Collectivism

A social theory favoring the priority of group needs over individual needs.

Consistency

The quality of always behaving or performing in a similar way, maintaining the same standards.

Openness to Experience

A personality trait characterized by a willingness to try new things, be creative, and think outside the traditional framework.

Conscientiousness

A personality trait characterized by organization, dependability, and a strong sense of duty.