Why Do Trees Lose Their Leaves?

Answer

Trees lose leaves for a number of reasons including to conserve energy over the winter and thwart damage to the tree. In addition, trees lose their leaves to protect themselves from wilting and dying during cold winds, by shedding leaves they preserve their moisture in the trunk and branches.
Q&A Related to "Why Do Trees Lose Their Leaves"
Trees use light as energy to produce food from carbon dioxide and water. As fall begins, leaves stop this process, turning yellow, orange and red as the green chemical known as chlorophyll
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So they can conserve water and not freeze in the winter.
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Broadleaf trees like maples and oaks are called deciduous trees because they lose their leaves in autumn. The loss of their leaves prepares these trees for the lack of water in winter
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Evergreen trees do not lose their leaves in the Fall
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2 Additional Answers
Ask.com Answer for: why do trees lose their leaves
In early autumn, the veins that carry fluids to the leaves close off. A layer of cells severs the tissue that support the leaves and caps off the end of the branch. The leaves gradually fall off.
Not all plants lose their leaves. Conifers remain green and keep their leaves for two to four years.
Trees lose there leaves when the seaons change. As the temperature goes down the tree starts to go dormant. During the winter time the tree is really just asleep.
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