During this time of evolution every single organism would die. It is just filled with hot gasses and solids that volcanoes threw!
The Archean Eon
Earth has know cooled down allowing water to exist! Oxygen could be found in compounds like water. The first organism : cyanobacteria grew in the oceans.
cyanobacteria created: Sunlight(Lead to photosynthesis) Carbon Dioxide and Water
Methane mixed with the oxygen that was created over time by the photosynthesis organism. It cleared the methane and the sky's became blue!
Oxygen at Last
Photosynthesis organisms created enough oxygen over 2 billion years ago
( 4.6 billion years ago)
Oxygen Boom
An increase of oxygen allowed a variety of animals to live!
After 600 million years there was so much oxygen that allowed life on land to exist because there was enough oxygen on the outside of seawater.
(4 - 2.5 billion years ago)
Age of Oxygen
Big huge forests grew! Oxygen made up 20 percent of the atmosphere.
More variety of organisms were grown in all regions of the world!
(2.5 billion - 400 million years ago)
Modern Atmosphere
(700 - 550 million years ago)
(400 - 290 million years ago)
The earth became cooler! The dead remains of the organisms that didn't make it became coal!