As a star like the Sun evolves into a red giant, its core
A) expands and cools.
B) contracts and heats.
C) expands and heats.
D) turns into iron.
E) turns into uranium.

Name: As a star like the Sun evolves into a red giant, its core A) expands and cools. B) contracts and heats. C) expands and heats. D) turns into iron. E) turns into uranium.
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As a star like the Sun evolves into a red giant, its core contracts and heats up due to gravitational forces, while the outer layers expand and cool.

As a Star Like the Sun Evolves into a Red