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Condensation Sequence and the Frost Line
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Astronomy
AST.123 Condensation Sequence and the Frost Line
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Which choice correctly distinguishes the water frost line from the edge of a protoplanetary disk?
A
The frost line is a temperature boundary inside the disk, not the disk's outer edge.
B
The frost line is the orbit where hydrogen first becomes rock.
C
The frost line is the star's solid surface.
D
The frost line is where the disk ends and empty space begins.
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