Life has evolved on earth for more than 3,700 million years. The oldest traces of life are found in sediments from Isua
In west Greenland and shows that life was already at that time relatively advanced, and probably able to
Use solar energy for photosynthesis. Photosynthesis enables organisms to intervene in the Earth's geochemical circuits
and thereby affect the geological development of the Earth. There are good arguments for the formation of the Earth's continents
Is a consequence of the development of photosynthesis in the Earth's early microbial ecosystems.