During the summer the leaves of a tree are busy making food for the tree. They contain chlorophyll which makes them green. When autumn comes, the stalks of the leaves are seaied off and the chlorophyll decays. The leaves lose their green colour and turn yellow, red or brown before they fall off. Once the leaves have fallen, the tree rests until the following spring, using food stored during the summer. Some trees do not lose all their leaves, and these are called evergreens. Most trees that have cones (conifers) are evergreen.
What is an arboretum? An arboretum is a collection of living trees, just as a zoo is a collection of living animals. The collection has been planted and looked after to show many different kinds of trees. Such collections give people the chance to study different trees easily without having to travel to find them.
What is a bonsai? A bonsai is a tree in a pot like a plant. It is specially cultivated so that it is a perfect miniature of a full-size tree. Most bonsai come from Japan, but the trees are sold worldwide.
Why do leaves turn yellow, red and brown in autumn?
Answers
Parth patel
During the summer the leaves of a tree are busy making food for the tree. They contain chlorophyll which makes them green. When autumn comes, the stalks of the leaves are seaied off and the chlorophyll decays. The leaves lose their green colour and turn yellow, red or brown before they fall off. Once the leaves have fallen, the tree rests until the following spring, using food stored during the summer. Some trees do not lose all their leaves, and these are called evergreens. Most trees that have cones (conifers) are evergreen.
What is an arboretum?
An arboretum is a collection of living trees, just as a zoo is a collection of living animals. The collection has been planted and looked after to show many different kinds of trees. Such collections give people the chance to study different trees easily without having to travel to find them.
What is a bonsai?
A bonsai is a tree in a pot like a plant. It is specially cultivated so that it is a perfect miniature of a full-size tree. Most bonsai come from Japan, but the trees are sold worldwide.