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The starch test proves if there is any chlorophyll in the plant (the green pigment in leaves.) If there is chlorophyll in a plant, photosynthesis takes place. A plant cannot do photosynthesis if there is no or hardly any chlorophyll in the plant.

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13y ago

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If 24 plants were left in a dark closet for 2 weeks and were all dead after that what would this prove?

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