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Can someone tell me what they want when they say "type of visible light"? The plants were in a window and received the morning sun.

Question:
What type of visible light is made available to for plants grown under the clear, red, or blue plastic?

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asked by Tim
  1. red

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  2. I need to know the "type of visible light?" Is it sunlight?

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    posted by Tim
  3. sunlight is fine, that's what they used in the experiment that I saw. I did something more complicated with this but in another experiment with spinach circles.

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