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symbo symbo
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Posts: 1970
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7 years ago
The statement that the apparent magnitude of a variable star has increased indicates that
A)   its brightness has increased.
B)   its surface temperature has decreased.
C)   its brightness has decreased.
D)   its surface temperature has increased.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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hyponoticahyponotica
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Posts: 1396
7 years ago
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symbo Author
wrote...
6 years ago
It's correct Smiling Face with Open Mouth
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