which gives the leaf its green color. This extraordinary chemical absorbs from sunlight the energy that is used in transforming carbon dioxide and water to carbohydrates, such as sugars and starch.
However, when the supply of water to the leaves is cut off, photosynthesis slows and eventually stops. As a result, chlorophyll production halts, and the green color fades or decomposition begins.
Severe floodwaters have left many dead, many roads closed, families without running water or electricity and ... Virginia to see a beautiful fall leaf color change. Gardner said, by mid-to ...