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Be a Friend to Trees

Un libro in lingua di Patricia Lauber Keller Holly (ILT) edito da Harpercollins Childrens Books, 1994

  • € 5,70
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Why should you be a friend to trees?

Trees are a valuable natural resource. People depend on trees for food, and animals depend on trees for food and shelter. But most important, we depend on trees because they add oxygen, a gas we all need, to the air. While trees give us many wonderful products, we must also protect them because we can't live without them.

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