Just go outside.
Look at trees, grass, bushes, ect. Why is it all green? Like why aren’t they all different colors? Why does it mostly all have to be green?
In: Chemistry
Plants are green because of chlorophyll in their cells, which is brightly colored.
And the more important answer is that chlorophyll looks green because of the way absorption and reflection/emission of light works. The predominant colors of light from the sun are blues/violets and some reds, so plants evolved a pigment to capture as much of the sun’s light as possible, and convert that light energy into chemical energy. The weakest part of the sun’s light is in the green spectrum, so chlorophyll reflects green instead of absorbing it, giving plants a green color to our eyes.
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