In northern countries around the world, the second half of the fall, and the leaves on deciduous trees becomes yellow, orange and red, before it falls. This seasonal phenomenon offers a feast for the eyes, but also leads many to wonder why leaves change color when the days become colder.
The yellow color of the leaves comes from pigments called carotenoids. These are the same pigments that make carrots orange, the ash and autumn leaves golden yellow people. Some scientists say that the leaves continues to create carotenoids, and after almost a chlorophyll because their yellow pigments allow to capture a little solar energy
Uploaded: Oct 16, 2015