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Because the leaves get cold and die.

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Q: What seasonal change causes deciduous trees to lose their leaves in the fall?
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Related questions

What is the name of trees which change their color?

Deciduous trees change the color of their leaves before they fall off in autumn.


What kinds of trees change there leaves in the fall?

Deciduous.


How do deciduous trees know when to drop their leaves?

If it loses its leaves in the winter, its deciduous. If not, its coniferous.


Do leaves ever change colors?

Leaves on deciduous trees change colour in the Autumn prior to dropping.


Can you give an interesting fact about the deciduous forest?

The leaves of the deciduous forest change every fall.


Do the leaves change color in the fall in Texas?

The leaves would change colors and fall off if the tree is a deciduous tree


What are signs of fall?

The colors of the leaves of deciduous trees change, then drop.


Which tree's leaves change the colour in s day?

Deciduous trees :)


What causes deciduous to lose their leaves each fall?

Formation of abscess layer at the base of petiole


Why do tree's leaves change color in fall?

Certain types of trees, known as deciduous trees, have leaves which will not survive the cold of winter, and therefore, the tree withdraws useful minerals from the leaves in the fall, so that those minerals will not be lost when the leaves die and fall off the tree. It is a process of nutritional conservation. The change in the chemical composition of the leaves causes a corresponding change in color.


Why do a tree leaves change color in the fall?

Certain types of trees, known as deciduous trees, have leaves which will not survive the cold of winter, and therefore, the tree withdraws useful minerals from the leaves in the fall, so that those minerals will not be lost when the leaves die and fall off the tree. It is a process of nutritional conservation. The change in the chemical composition of the leaves causes a corresponding change in color.


Why do a tree's leaves change color in fall?

Certain types of trees, known as deciduous trees, have leaves which will not survive the cold of winter, and therefore, the tree withdraws useful minerals from the leaves in the fall, so that those minerals will not be lost when the leaves die and fall off the tree. It is a process of nutritional conservation. The change in the chemical composition of the leaves causes a corresponding change in color.