What was early Earth like ?
While Earth was still fairly young and developing it was filled with hot, harmful gases most likely given off by volcanoes. The majority of the gas was carbon dioxide. THERE WAS BARELY ANY OXYGEN AT ALL!
History in Rocks
Fossils are preserved organisms from a different time period.
Fossils are formed when an organisms dies and is buried in silt and mud and their body is preserved within the layers of dirt.
Fossils are formed when an organisms dies and is buried in silt and mud and their body is preserved within the layers of dirt.