Only certain sections of the spectrum kickstarts photosynthesis. The rest heats the leaf, increasing Earth temperatures. The plant wouldn't survive if it refle

Only certain sections of the spectrum kickstarts photosynthesis. The rest heats the leaf, increasing Earth temperatures. The plant wouldn't survive if it reflected the 400-500 and 600-700 nm light. Note that I said "and"; there are plants that rely on a less-efficient 600-700 band; they are often reddish in appearance even when fully functioning. (The reddish color of dead autumn leaves is because the chlorophyll is more volatile, leaving only the red pigmentation responsible for the less-efficient means of photosynthesis.)