It happened right when the earth was formed by other weird stuff.
due to sedimentation
due to sedimentation
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 layers of gases that form around Earth are called the atmosphere. It is composed of several layers, including the troposphere (where weather occurs), stratosphere (containing the ozone layer), mesosphere, thermosphere, and exosphere.
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.
The Inner core, outer core, mantle, and crust.
Because the earth is held together by gravity and also because if they were not new plates would not form.
it is a part of the EARTH layers.