19-01-2013, 01:26 PM
The origin of the Earth
The origin of the Earth.ppt (Size: 2.78 MB / Downloads: 46)
The Crust
This is where we live!
The Earth’s crust is made of:
Two Layers those are
Plates are made of rigid lithosphere.
The lithosphere is made up of the crust and the upper part of the mantle.