If life had not been born, the Earth we now know geologically would be much poorer. In fact, two thirds of the minerals we know today would not have been created without life or life, according to a group of geochemicals from the Carnegie Institution in Washington. He has given several examples to support this idea. Among other things, he said that the atmosphere rich in oxygen of the Earth was due to the appearance of algae, which allowed to oxidize the minerals that then existed and create, like iron.