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adreamer adreamer
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6 years ago
Over time, as they age, the habitable zone of stars like our Sun
A) move inward
B) remain the same
C) suddenly disappear   
D) move outward
Textbook 
Life in the Universe

Life in the Universe


Edition: 4th
Authors:
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19Clyde19Clyde
wrote...
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Posts: 584
6 years ago
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adreamer Author
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6 years ago
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