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doit_the_clown doit_the_clown
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7 years ago
Infrared stars within the Orion nebula are examples of which stage of stellar evolution?
A)   Protostar and young star   C)   Planetary nebula
B)   Red-giant   D)   Supernova remnants
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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hyponoticahyponotica
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7 years ago
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7 years ago
Thanks for your help!!
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I appreciate what you did here, answered it right Smiling Face with Open Mouth
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This site is awesome
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