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alireads alireads
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A(n) ____________________ is a cool, dense cloud of dust and gas that is undergoing gravitational contraction.

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ASTRO

ASTRO


Edition: 3rd
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12Jfiscus12Jfiscus
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alireads Author
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6 days ago
Good timing, thanks!
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Yesterday
Thanks
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2 hours ago
Smart ... Thanks!
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