due to sedimentation
mass
Lava building up from layers and layers in the Earth
the earth is in solid and liquid form thus penetration is different tha:t account for the different earth layers.
The outer layers, the continental and oceanic crust.
The lithosphere.
The gases that surround Earth are called the Ozone layer.
The earth has a total of 6 main layers.
Pressure through layers of crust
At some places on earth surface thin layers of lava pour out of the vent and hard on top of previous layers
The layer of gases attracted to earth is atmosphere. It is a big layer.
It happened right when the earth was formed by other weird stuff.