A. gives off dim blue-green light only in the dark.
B. gives out light of its own
C. shines by reflected light only
D. glows only in the presence of light
Correct Answer:
Option B – gives out light of its own
A. gives off dim blue-green light only in the dark.
B. gives out light of its own
C. shines by reflected light only
D. glows only in the presence of light
Correct Answer:
Option B – gives out light of its own
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