Why Do Leaves Change Color in the Fall?
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All leafs have various chemicals, pigments, that give them colour. One of those is chlorophyll. Its the green pigment. Chlorophyll is extremely important, because it allows photosynthesis, the asborbtion of light production of energy for plants. But during autumn and winter, there is not enough light for plants to do photosynthesis. So the amount of chlorophyll produced lowers. The remaining pigments give the leaves the new colours, when the chlorophyll green disappears.
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