Earth Spheres around the willow tree

The hydrosphere is all of Earth's water, from up in the air to under the ground. The atmosphere is the air above the ground, and includes the clouds and water vapor.  The geosphere is the rocky part of Earth from the ground down to the core.  The biosphere is Earth's life, from a short distance under ground up into the atmosphere.
September 19 2013.pdf, 104.04 KB; (Last Modified on September 20, 2013)