How should trees be looked after and protected?

If trees disappear in the world, then humanity will cease to exist. Trees are the lungs of our planet and they perform many other functions. They require care. During drought, trees need to be watered. Protect and rid them of parasites. It is important to do pruning, removing dead areas, excess branches. If the tree is productive, you need to harvest, freeing them from the load. Place next to trees to dispose of trash regularly. If the tree does not tolerate frost, it is necessary to insulate it.