What Is Dirt Made Out Of?

What Is Dirt Made Out Of?

A single tablespoon of soil contains more organisms there are people on Earth.


Key Facts In This Video

  • 1

    Soil and dirt aren't the same thing. (0:14)

  • 2

    Around 45 percent of soil consists of three main components. (0:51)

  • 3

    In the U.S. alone there are about 50,000 different types of soil. (1:24)

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