Why do most of the plants shed their leaves in the fall?

Leaves are essential to plant life. By using sunlight, this is where chlorophyll is produced. In chlorophyll grains, substances are produced with the help of which new buds, branches, everything that a plant consists of, grows. It feeds on these substances and accumulates them. Chlorophyll, which is constantly decaying, is rapidly recovered in the light. The leaves are also firmly attached to the branch with the help of a cutting. In the fall, daylight hours become shorter. Chlorophyll does not have time to recover. Little nutrients are produced, and then completely stops. The stalk becomes weak and not so tightly attached to the branch. The tree, having accumulated nutrients over the summer, gets rid of the leaves. Leaf fall is observed.