Grade Level: JrH-Adult Producer:Waterhen Closed Captioned: No
Running Time: 26 mins ea Country of Origin: Canada Study Guide: No
Copyright Date: 1996 Available in French: No
Explores the problems encountered when we try to distinguish between living and non-living parts of the earth. Everything on earth is linked by the cycling of matter and flows of energy - making it impossible to distinguish living and non-living parts.