Why do the trees drop their leaves in the fall?

5 answers

When winter approaches, our part of Earth receives less sunlight, and the air grows colder. When these changes happen, trees prepare for winter. Trees that drop their leaves seal the spots where the leaves are attached. Then fluids cannot flow in and out of the leaves, which change color and fall off.
Here's a good explanation.

http://www.highlightskids.com/science-questions/how-and-why-do-leaves-fall-trees
Harmonie -- please do not plagiarize! You should have credited the source of your quotation.
sorry Ms. Sue. i just googled it. It wont happen again, i promise.
help I have a test that I have really bad test scores on so my question is why do trees in temperate forest lose their leaves in the fall a to provide shelter for animals be to conserve energy see which is Ranchos to provide nutrients for the root system or be to protect the roots from heavy rainfall I don't know I guess was I guess correctly