Earth's early geosphere was made up of lava, compressed rock, and then eroded material built up then compressed, with solidified rock at the top.

Geosphere

Geosphere

Measurements of surface chemical composition, either by direct sampling or through observations, can be used to guess elemental amounts and the amount of differences that occurred as the planets grew together from the solar nebula.

As time has went on, as climate change gets worse, the geosphere is more and more affected.

The surface was molten. As earth cooled, an atmosphere formed mainly from gases spewed from volcanoes. It included hydrogen sulfide, methane, and ten time as much carbon dioxide as today's atmosphere.

Atmosphere

Atmosphere

Most scientists agree that the Earth's atmosphere contained very little oxygen when the planet formed 4.5 billion years ago. But iron deposits on the ocean floor which can exist only when oxygen in the water causes metal to precipitate out.