Just as a Low-Mass Main-Sequence Star Runs Out of Fuel

question 47

Multiple Choice

Just as a low-mass main-sequence star runs out of fuel in its core,it grows more luminous.How is this possible?

• A) It explodes.
• B) It begins to fuse helium in the core.
• C) Its core expands as it runs out of fuel.
• D) Its core shrinks,bringing more hydrogen fuel into the burning region.

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Definitions:

Introversion

A personality trait characterized by a focus on internal feelings rather than external sources of stimulation; introverts often prefer solitary activities.

Agreeableness

A personality trait characterized by compassion, cooperativeness, and a desire to maintain positive social relationships.

Shyness

The feeling of apprehension or lack of comfort in social situations that may inhibit personal interaction.

Constantly Fear

A persistent and ongoing state of anxiety or dread.