Photosynthesis makes life on earth possible.

Photosynthesis is an important process that permits plants, including trees, to use their leaves to trap the sun's energy in the form of sugar. The leaves then store the resulting sugar in cells in the form of glucose for both immediate and later tree growth. Photosynthesis represents a beautifully wonderful chemical process in which six molecules of water from roots combine with six molecules of carbon dioxide from the air to create one molecule of organic sugar. Of equal importance is the byproduct of this process—photosynthesis is what produces oxygen. There would be no life on earth as we know it without the photosynthetic process.
treehugger.com/trees-and-the-process-of-photosynthesis-1342630
By Steve Nix, Writer, University of Georgia
Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama.
Updated January 11, 2022