A tree is a tall plant with a trunk and branches made of wood. It can live for many years. The four main parts of a tree are the roots, the trunk, the branches, and the leaves.The roots of a tree are usually under the ground.trees give out carbon dioxide.

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five lines on tress :
1. tress are the ones on which the human being depend for many things like food and all essential needs.
2. due to man's greed he is cutting down all the trees.
3. the trees are very much useful for us.
4. the trees are all most seen every where we go and stay.
5. trees provide us oxygen.