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Which of the following is not a natural source of light?  A. Oil lamps B. Fluorescence C. Phosphorescence D. The sun
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Which of the following is not a natural source of light? 

A. Oil lamps   
B. Fluorescence   
C. Phosphorescence   
D. The sun

User MrGumble
by
7.3k points

2 Answers

2 votes

Penn Foster STudents: Oil Lamps

User Rony Rozen
by
7.6k points
5 votes
A oil lamps

Because you woil still jabe to make the lamps to put the oil in and the pil also has to be mixed with other chemical.
User Jesper Bylund
by
8.4k points
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