Bill Nye the Science Guy. Erosion [videorecording] / executive producers, James McKenna, Erren Gottlieb ; directed by Michael Gross ; Disney Educational Productions.
Imprint
Elk Grove Village, Ill. : Disney Educational Productions, c2004.
Erosion can make slow, almost invisible modifications, or sudden, drastic alterations to the landscape. Either way, the forces of erosion will always be at work.