“A tree is any plant with a self-supporting perennial woody stem” — a tree is able to stand up by itself because of the way it is built and it keeps growing and getting bigger every year. Trees have leaves, branches, a main trunk and roots. The leaves have — Twig the ability to take carbon dioxide from the air and mix it with water taken from the soil by the roots. With the help of the suns energy and chlorophy!l
the leaves can create sugars from the carbon dioxide and water.