The sun part 1: the color of plants

For the sake of argument, light is made up of particles called photons; and although the sun emits photons of every conceivable color, if you could collect and sort them like so many M&Ms you would find a preponderance of "green" ones. In other words: the sun shines green more intensely than it does any other color.

(That the sun does not appear green may seem to belie my claim, but this is simply because we humans perceive sunlight as a blend of colors. In fact, sunlight is white - not yellow as artistic renditions had me believing. But it has been pointed out that if the sun really were yellow, then so too would be the clouds.)

It is unsurprising then, that the human eye is most sensitive to green light. After all, it has evolved specifically to take advantage of a green sun.

But it is much more surprising  that plants are usually green. I mean, seriously: why are plants green? Some readers might be quick to answer that it's because they contain chlorophyll - a green pigment essential to photosynthesis and thus the survival of most plants. But this is no answer at all, for it merely begs the next logical question: why is chlorophyll green?