100 Facts About the Earth

The Earth's crust varies in thickness, ranging from about 5 kilometers (3 miles) under oceans to about 70 kilometers (43 miles) under continents.


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The Earth's crust varies in thickness, ranging from about 5 kilometers (3 miles) under oceans to about 70 kilometers (43 miles) under continents.

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100 Facts About the EarthBy Soundville Holdings, LLC