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Shudson Shudson
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Posts: 958
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6 years ago
What are four sources of artificial light?
 
  a. tungsten-halogen, fluorescent, incandescent, neon
 
   b. neon, florescent, combustion, incandescent
 
   c. incandescent, fluorescent, sunlight, HID
 
   d. HID, neon, combustion, incandescent
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hock0904hock0904
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6 years ago
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Shudson Author
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6 years ago
Thanks for your help!!
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Yesterday
Good timing, thanks!
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2 hours ago
This calls for a celebration Person Raising Both Hands in Celebration
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