They use this energy to carbon dioxide and water into fuel for the tree. There are several types of leaves. There are broad-leafed trees. These trees have either simple or compound types of leaves. Simple leaves have one main leaf, whereas compound leaves are a group of leaves attached to one stalk.
Some trees have needles and scales .
These are found on conifers. These include pines, redwoods and cypresses. Some trees have blossoms that become fruit. The blossoms are pollinated by animals, like birds and bats. Fruits and berries are produced on these trees.