What's the question here?
It is like a animal migrating because it is like hibernating because it doesn't get any food or water in winter.
I believe it is burning fossil fuesl
A leaf performs various important functions for the plant. It is usually green due to the presence of a green pigment called chlorophyll. A leaf prepares food for the plants. The process of making food by the plant using carbon dioxide, water, chlorophyll, and light is called photosynthesi