Why do Autumn leaves fall?

Let’s learn why do Autumn leaves fall. The most accurate or helpful solution is served by Quora.

There are ten answers to this question.

Best solution

What triggers leaves to fall in autumn (fall) and new growth in spring?

The possibilities seem to be change in day length or temperature, or a combination of these. Or do plants have an inbuilt clock?

Answer:

There is a good deal of variety from plant to plant, but on the whole plants have homologous circadian...

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Other solutions

Why do leaves fall off in the autumn??

A- The tree is preparing for the development of new branches. B- The water in the leaves freezes, making the leaves too heavy to remain on the tree. C- The tree is better able to conserve its resources D- The leaves are damaged and must be replaced.

Answer:

The best of these terrible answers is "C". The real reason is that an enzyme stops being produced...

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Why do leaves fall/die only on autumn?

Autumn is almost here and I was wondering why do leaves on trees and other plants die during this season.

Answer:

The energy in the tree flows down towards the roots (sap). The tree does this to protect itself from...

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Why do leaves change color and fall off in Autumn?

I've heard two different reasons. The one I hear most is because of the colder temps. The other one is that it has to do with the angle of the Suns rays in the fall and that trees can ...show more

Answer:

What I have been taught, is that because in the fall and it gets colder, that the tree isn't able to...

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SJ4A7S6I5RD66ZHZR34AFQUGHM at Yahoo! Answers Mark as irrelevant Undo

Autumn Blaze trees planted in fall no leaves in spring?

I planted 4 maple trees in fall they all looked good with leaves in fall 1-2 in trunks. I used the old soil to fill in the hole and did not fertilize. I watered once a week until it started to get cold. They all dropped there leaves now this spring only...

Answer:

It sounds like they are struggling and the leafless trees may be dead. (Im sorry) You can use your thumbnail...

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Does anyone remember a novel from the 1990's about a girl in San Fran in acting school? Fall/Autumn Leaves?

It was a young adult book about a young black family in San Francisco that focused on the younger sister but I can't remember the protagonist's name. Her sister was Cassandra. The girl got into a performing arts high school and did the monologue Ain...

Answer:

Fall Secrets by Candy Dawson Boyd http://www.amazon.com/Fall-Secrets-Candy…

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sarah davis at Yahoo! Answers Mark as irrelevant Undo

Autumn and the trees-How do trees know that it is time for the leaves of the tree to change colors and fall?

Have you always wondered how do trees know when it is that time of year for the leaves to change colors and fall off of the trees on to the ground,what processes must a tree go threw before it's leaves can start to change color and fall on to the ground...

Answer:

As the seasons change....daylight hours becoming shorter and temperatures dropping, the sap in the trees...

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Do the leaves fall in the south during autumn?

I am from Michigan and have always had all 4 seasons. I just moved down to Mississippi 3 months ago and was wondering if the leaves fell here too? I was taught that the leaves fall because of cooler temperature, but it hasn't fallen below 70 here yet...

Answer:

Just a matter of time be patient and the season will arrive on schedule for the location where you are...

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Lys at Yahoo! Answers Mark as irrelevant Undo

Do you like seeing the autumn leaves fall in the wind?

Today as I was walking out of class, it was quite windy and there are many trees on campus and all of a sudden a strong wind came by and all the leaves started to fall all around me! It was so beautiful. I was putting my hands in the air and trying to...

Answer:

Yeah, that sounds like something you would do. I love the environment during this type of year. Autumn...

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What happens in summer?, in autumn leaves fall, in spring flowers bloom?

i need two things that happen in summer spring and autumn please im writing a poem

Answer:

Summer - bright sunshine, thunder/lightening. Spring - alot of rain, flourishing crops/gardens. Autumn...

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TBK65CTJ5KSNYV7C6HR7X5WCT4 at Yahoo! Answers Mark as irrelevant Undo

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