Layers+of+Earth

The layers of Earth protect and sustain different levels of Earth: Crust, Living, and Air. These layers all help Earth be full of life and give protection to the life it has.

http://upload.wikimedia.org/wikipedia/commons/c/cd/Atmosphere-Biosphere-Hydrosphere-Lithosphere.png

Homepage- http://apes1234.wikispaces.com/Homepage+for+APES+project

Lithosphere- http://apes1234.wikispaces.com/Layers+of+Earth-+Lithosphere

Biosphere- http://apes1234.wikispaces.com/Layers+of+Earth-+Biosphere

Atmosphere- http://apes1234.wikispaces.com/Layers+of+Earth-+Atmosphere