9
QuizMultiple Choice

The H-R Diagram — Quiz

Question 9 • Earth and Space Science

A 1-solar-mass star and a 10-solar-mass star begin their lives on the main sequence but follow different evolutionary paths. Which statement correctly describes their evolution?

Answer
A
Both stars will end as white dwarfs.
B
Both stars will end as supernovas.
C
The 10-solar-mass star will have a longer lifespan than the 1-solar-mass star.
D
The 1-solar-mass star will end as a white dwarf, while the 10-solar-mass star will end as a supernova.

Explanation

A star’s mass determines its fuel use and final fate. A 1-solar-mass star eventually sheds its outer layers and leaves behind a white dwarf. A 10-solar-mass star burns through its fuel much faster and ends its life in a supernova, so the correct statement is that the 1-solar-mass star becomes a white dwarf while the 10-solar-mass star becomes a supernova.

AI-written and checked against the verified answer.

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