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This question belongs to Agriculture Plant Pathology
Plant Pathology
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Which of the following is least effective in photosynthesis

Answer & Solution
Correct Answer: Option D
Green light is the least effective in photosynthesis.
Chlorophyll gives plants their green colour because it does not absorb the green wavelengths of white light.
That particular light wavelength is reflected from the plant, so it appears green. Plants that use photosynthesis to make their food are called autotrophs.
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