Healing Our Troubled Planet: Volume Two DVD

Discovery Education

$59.95 
SKU: DC024547
Format: DVD
Grade Level:
Runtime: 19
Copyright: 2010

Alt Formats:
Free Resources
Marc Record

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Examines air's role in the biosphere and considers how air pollution threatens human and wildlife populations. The program explores the carbon and nitrogen cycles and studies how the processes work in plants and animals. Four categories of air pollution are highlighted as well as sources of renewable energy including wind, solar, and geothermal.