What changes occur in the fall in the life of deciduous trees and shrubs?

Deciduous trees and shrubs lose their foliage in autumn, and before that the leaves become dry and change color.

This change occurs because trees and shrubs are thus prepared for the long, cold winter.

Leaves evaporate a lot of moisture, and such extravagance in winter can lead to the death of the tree.

Another risk is that the snow falling and collecting on the leaves can simply ruin the tree: branches can break from the weight of the snow.

Fallen foliage allows small forest animals to hide under them.