they use a drill that has a level that tells them what thing the drill is drilling
the drill but is made of gold
I say thick because it's got many layers.
the crust is the thickness of earths layers
crust: average of 32 km thick mantle: 2900 km thick outer core: 2200 km thick inner core 1250 km thick
The mantle is one of the three main layers of the Earth. It lies between the core and the crust. The mantle consists of hot, dense, semisolid rock and is about 3000 kilometers thick.
The Earths crust is approximately 650 km deep.
it is 7 layers
one and a half miles thick
Quite Thin, As We Have 8 Layers Of Skin.
:D
asthenosphere
One cell thick
Penguins