Tuesday, October 17, 2006

Fall

Despite its signal that winter is soon to come, the fall foliage is always a treat for the eyes.

As autumn approaches, the amount of available sunlight decreases. This signals the tree that winter is approaching and that it is time to begin the process of shedding its leaves. As a result, the production of chlorophyll ceases and breaks down. Because of this, the green color of the leaf disappears allowing the other pigments to show off their hues.

A maple leaf loses its chlorophyll and other pigments become visible.












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