Question

Why do the leaves fall in autumn?

Answer 1

Answer:

The short answer is that leaves fall off trees when they aren't doing their job any more. A leaf's job is to turn sunlight into food for the tree. To do this, the leaf needs water. ... The tree doesn't want to waste all the good things in the leaf, so it takes the nutrients from the leaf back into the stems and roots.

Answer 2

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when they aren't doing their job any more. A leaf's job is to turn sunlight into food for the tree. To do this, the leaf needs water. ... The tree doesn't want to waste all the good things in the leaf, so it takes the nutrients from the leaf back into the stems and roots.

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