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Why Do Fall Leaves Change Colors?

If you are like most people, you love to see the changing colors of the Fall leaves when summer shifts into the fall season.

But did you ever wonder why those leaves change color and why there are different colors of leaves? What in nature triggers the multiple colors of leaves we see during the fall season?

You need a minor course in botany to understand leaf color changes. Leaves produce food for the tree.

The process by which leaves create food for trees, though an amazing act of nature, is not difficult to understand.

How leaves work

• Carbon dioxide from the air
• Photosynthesis
• Growth

Roots provide leaves with the water required for life.

trees also take carbon dioxide gas from the air. This is why many believe that planting trees helps combat global warming, thinking that each added tree takes more carbon dioxide from the air.

Sunlight is the catalyst that employs water from a tree‘s root system to change carbon dioxide into oxygen and glucose. An element man cannot live without, oxygen, is a significant consequence of this process! In addition to oxygen to sustain life for man, the glucose made here becomes the life-generating food for trees. The name of this amazing process that provides life for both the human and plant worlds is photosynthesis. An important chemical in the photosynthesis process, chlorophyll, is the source of green coloring in leaves.

Trees know that when the days start getting shorter, then summer is ending and the fall season is near. This signals for trees to begin preparing for winter. Without abundant natural light, photosynthesis cannot occur throughout the winter.

There also may be less water available due to freezing and/or less precipitation. This switch causes the trees to stop making food. Because trees regularly store additional food during the photosynthesis season, trees have few worries of a food shortage throughout winters.

Chlorophyll in leaves serves no purpose once photosynthesis ends. Suddenly, chlorophyll is gone. As chlorophyll leaves, so, too, does the color green from leaves. Keep in mind that removing green from the leaf doesn‘t change the leaf’s original color! Rather, the colors have been there all along; they’ve just been overpowered by green chlorophyll. Once that is removed, you are left with the Fall leaves real color!

For more beautiful thoughts about Modern Greetings visit www.ModernGreetings.com because Autumn's beauty is expressed through Modern Greetings.
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