Red and Blue light is absorbed by chlorophyll, the pigment that transforms light energy into chemical energy in photosynthesis, so that the light that is reflected off leaves appears green.
Green is reflected but all other colors are absorbed during phoyosynthesis.
Green
Red mostly. Leaves appear green to us because plants don't use it and reflect it away.
Red and blue
Red and blue light is most important to chlorophyll photosynthesis. Other photosynthetic pigments use other wavelengths of light.
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