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einsteindude einsteindude
wrote...
Posts: 5058
9 years ago
The event that changes a protostar to a full-fledged star is
A) gravitational collapse.
B) gravitational expansion.
C) thermonuclear fusion.
D) the emission of light.
E) a catastrophic increase in temperature.
Textbook 
Conceptual Physical Science

Conceptual Physical Science


Edition: 6th
Authors:
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bSharpbSharp
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Posts: 3706
9 years ago
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