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US Botanic Garden Exposes Secret Life of Roots

Plant roots play a vital role for life on earth. They absorb water and nutrients to feed plants, which feed animals and humans, and they anchor soil to prevent erosion. The U.S. Botanic Garden in Washington pays tribute with a new exhibit called “Exposed.” VOA’s Rosanne Skirble digs in for a closer look at what’s going on underground.

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