"Solar storms, like the one in the video, may have caused a dramatic increase in nitrous oxide in Earth's early atmosphere, allowing it to warm enough to support life. What is the earliest life form found in the fossil record?
The early forms of the life in the earth were in the firms of the cyanobacteria and they made oxygen in the air and when the earth was warm enough to support the life forms and thus the earlier fossil of the pants and animals shows the remains of the cyanobacteria as blue-green algae.
