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Soil
Did you realize that the very ground you walk on is alive? A handful of soil may contain millions of living things such as tiny insects, microscopic bugs and bacteria as well as worn down rock and minerals that plants use as food.
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Season 1 : Episode 1
Did you realize that the very ground you walk on is alive? A handful of soil may contain millions of living things such as tiny insects, microscopic bugs and bacteria as well as worn down rock and minerals that plants use as food.
Aired: 5/21/05
Views: 37
 
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