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Produced by the American Geosciences Institute, this segment provides an overview of the biosphere and its components. Additional discussions include how humans are impacting the biosphere. Part of the "Visions of Earth" series.
Runtime: 26 minutes 53 seconds
Visions of Earth: Exploring the Biosphere
Visions of Earth: Exploring the Fluid Spheres
Visions of Earth: Exploring the Geosphere
Visions of Earth: Tool Kit for Teachers
Funding provided by the Department of Education
Administered by the National Association of the Deaf