tree roots: how do they harness the energy to break a sidewalk?

Subject: tree roots: how do they harness the energy to break a sidewalk?

Date: Wed Aug 15 13:30:14 2001
Posted by Irwin Weiss
Grade level: nonaligned School: none
City: Pacific Palisades State/Province: ca Country: usa
Area of science: Botany
ID: 997896614.Bt

Message:


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Re: tree roots: how do they harness the energy to break a sidewalk?

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