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ssi15 ssi15
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A year ago

As a star exhausts the hydrogen in its core, what happens to its outer layer?



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It compresses and heats up.



▸

It compresses and cools down.



▸

It expands and heats up.



▸

It expands and cools down.

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ASTRO

ASTRO


Edition: 3rd
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varelaj326varelaj326
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A year ago
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ssi15 Author
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A year ago
Thanks
patod1
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
Liarec
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2 hours ago
Good timing, thanks!
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