Whether the tree is a coniferous or deciduous tree, where it bears fruit or not, whether it grows in the tropics or in the temperature zone, each tree consists of three parts: roots, stems and crowns. The root, part of the underground tree, holds the tree firmly against the wind and feeds the trees that are collected from the ground.

    The trunk, which is the most important part of wood, is the body of the tree; it carries food from roots to branches. The crown of the tree consists of branches, leaves and fruits from the tree. The leaves use food derived from the stem for various purposes, one of which is called photosynthesis.

    Leaves absorb carbon dioxide from the atmosphere. Individual progress is very important for human life, because people breathe oxygen.

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