Spin Around the Solar System: The Earth's Water
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Two thirds of the Earth's surface is covered by liquid water, almost all of which is in the oceans. Only 1 percent is drinkable fresh water. The Earth's water is moving constantly through the land,... (more info)

Two thirds of the Earth's surface is covered by liquid water, almost all of which is in the oceans. Only 1 percent is drinkable fresh water. The Earth's water is moving constantly through the land, oceans and atmosphere.

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