Shows how life on earth relies on the sun for energy. Explains the basic processes by which plants and animals obtain the sun's energy stored in food.
Encyclopedia Britannica, 331 N. LaSalle St., Chicago, IL 60610, Phone: (312)347-7159, Toll-free: 800-323-1229, Fax: (312)294-2104, URL: http://www.britannica.com
Available on VHS
Running time 9 minutes.
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