in the autumn it begins to get colder, the soil gradually freezes, and it becomes more and more difficult for tree roots to extract water from it. By winter, the tree completely stops receiving water and food from the soil, and if the leaves continued to remain on the tree, all the water would evaporate through their surface and the tree would die
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.