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    There are three main parts of a tree. They are crown, trunk, root. The crown is at the top of the tree. It consists of leaves, branches, and twigs. The crown filters dust and other particles from the air. The leaves produces food for the tree through photosynthesis.

    The trunk or stem of a tree supports the crown and gives the tree its shape and strenght. The trunk consists of some layers. The layers carry water and minerals up from the roots to the leaves, and they carry sugar down from the leaves to the branches, trunk and roots.

    Tree's roots absorb water and nutrients from soil.store sugar and hold the tree upright in the ground. Some roots can go down more than four meter.

What carry water and minerals up from the root to the leaves?