Hydrosphere
The hydrosphere includes all of the water on Earth. This includes Earth’s oceans as well as the rivers, lakes, streams, polar ice caps and moisture. This can also include water down several kilometers below the Earth’s surface or water up in the Earth’s atmosphere. 71% of the Earth is covered in water. Of all of Earth's water, about 97% is ocean, almost 3% is water in ice caps, glaciers and underground and less than 1% is available for us to drink.
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