The first colours to appear are yellow, then they turn clear too, revealing the gorgeous red ... tree loses water, the leaves, or needles, become unable to create food anymore, so they fall ...

Hence, we often call the season "fall." Biologically speaking ... poplars, birch and ginkgo trees. The red colors in leaves are created by anthocyanin, which is in a class of pigments known as ...

Every autumn we revel in the beauty of the fall colors. The mixture of red, purple, orange and yellow is the result of chemical processes that take place in the tree as the seasons change from summer ...

“Some of them are yellow, some of them are red, depending on the tree,” she added. Cooler temperature also impacts the timing and brightness of fall leaf colors. “The colder it ...